diff --git a/apps/mobile/app/common/database/encryption.ts b/apps/mobile/app/common/database/encryption.ts
index 13ee15208..8d9510909 100644
--- a/apps/mobile/app/common/database/encryption.ts
+++ b/apps/mobile/app/common/database/encryption.ts
@@ -18,6 +18,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 import Sodium, { Cipher, Password } from "@ammarahmed/react-native-sodium";
+import { SerializedKey } from "@notesnook/crypto";
 import { Platform } from "react-native";
 import "react-native-get-random-values";
 import * as Keychain from "react-native-keychain";
@@ -233,7 +234,40 @@ export async function getDatabaseKey(appLockPassword?: string) {
   }
 }
 
-export async function deriveCryptoKey(data: Required<Password>) {
+export async function deriveCryptoKeyFallback(data: SerializedKey) {
+  if (Platform.OS !== "ios") return;
+  try {
+    if (!data.password || !data.salt)
+      throw new Error(
+        "Invalid password and salt provided to deriveCryptoKeyFallback"
+      );
+
+    const credentials = await Sodium.deriveKeyFallback?.(
+      data.password,
+      data.salt
+    );
+
+    if (!credentials) return;
+
+    const userKeyCipher = (await encrypt(
+      {
+        key: (await getDatabaseKey()) as string,
+        salt: NOTESNOOK_DB_KEY_SALT
+      },
+      credentials.key as string
+    )) as Cipher<"base64">;
+    DatabaseLogger.info("User key fallback stored: ", {
+      userKeyCipher: !!userKeyCipher
+    });
+
+    // Store encrypted user key in MMKV
+    MMKV.setMap(USER_KEY_CIPHER, userKeyCipher);
+  } catch (e) {
+    DatabaseLogger.error(e);
+  }
+}
+
+export async function deriveCryptoKey(data: SerializedKey) {
   try {
     if (!data.password || !data.salt)
       throw new Error("Invalid password and salt provided to deriveCryptoKey");
@@ -248,14 +282,13 @@ export async function deriveCryptoKey(data: Required<Password>) {
         salt: NOTESNOOK_DB_KEY_SALT
       },
       credentials.key as string
-    )) as Cipher;
+    )) as Cipher<"base64">;
     DatabaseLogger.info("User key stored: ", {
       userKeyCipher: !!userKeyCipher
     });
 
     // Store encrypted user key in MMKV
     MMKV.setMap(USER_KEY_CIPHER, userKeyCipher);
-    return credentials.key;
   } catch (e) {
     DatabaseLogger.error(e);
   }
@@ -266,7 +299,7 @@ export async function getCryptoKey() {
     const keyCipher: Cipher = MMKV.getMap(USER_KEY_CIPHER);
     if (!keyCipher) {
       DatabaseLogger.info("User key cipher is null");
-      return null;
+      return undefined;
     }
 
     const key = await decrypt(
@@ -298,41 +331,65 @@ export async function getRandomBytes(length: number) {
   return await generateSecureRandom(length);
 }
 
-export async function hash(password: string, email: string) {
-  //@ts-ignore
-  return await Sodium.hashPassword(password, email);
+export async function hash(
+  password: string,
+  email: string,
+  options?: { usesFallback?: boolean }
+) {
+  DatabaseLogger.log(`Hashing password: fallback: ${options?.usesFallback}`);
+
+  if (options?.usesFallback && Platform.OS !== "ios") {
+    return null;
+  }
+
+  return (
+    options?.usesFallback
+      ? await Sodium.hashPasswordFallback?.(password, email)
+      : await Sodium.hashPassword(password, email)
+  ) as string;
 }
 
 export async function generateCryptoKey(password: string, salt?: string) {
-  try {
-    //@ts-ignore
-    const credentials = await Sodium.deriveKey(password, salt || null);
-    return credentials;
-  } catch (e) {
-    DatabaseLogger.error(e);
-  }
+  return (await Sodium.deriveKey(password, salt)) as Promise<SerializedKey>;
 }
 
 export function getAlgorithm(base64Variant: number) {
   return `xcha-argon2i13-${base64Variant}`;
 }
 
-export async function decrypt(password: Password, data: Cipher) {
-  if (!password.password && !password.key) return undefined;
-  if (password.password && password.password === "" && !password.key)
-    return undefined;
+export async function decrypt(password: SerializedKey, data: Cipher<"base64">) {
   const _data = { ...data };
   _data.output = "plain";
 
   if (!password.salt) password.salt = data.salt;
+
+  if (Platform.OS === "ios" && !password.key && password.password) {
+    const key = await Sodium.deriveKey(password.password, password.salt);
+    try {
+      return await Sodium.decrypt(key, _data);
+    } catch (e) {
+      const fallbackKey = await Sodium.deriveKeyFallback?.(
+        password.password,
+        password.salt
+      );
+      if (Platform.OS === "ios" && fallbackKey) {
+        DatabaseLogger.info("Using fallback key for decryption");
+      }
+      if (fallbackKey) {
+        return await Sodium.decrypt(fallbackKey, _data);
+      } else {
+        throw e;
+      }
+    }
+  }
+
   return await Sodium.decrypt(password, _data);
 }
 
-export async function decryptMulti(password: Password, data: Cipher[]) {
-  if (!password.password && !password.key) return undefined;
-  if (password.password && password.password === "" && !password.key)
-    return undefined;
-
+export async function decryptMulti(
+  password: Password,
+  data: Cipher<"base64">[]
+) {
   data = data.map((d) => {
     d.output = "plain";
     return d;
@@ -342,6 +399,26 @@ export async function decryptMulti(password: Password, data: Cipher[]) {
     password.salt = data[0].salt;
   }
 
+  if (Platform.OS === "ios" && !password.key && password.password) {
+    const key = await Sodium.deriveKey(password.password, password.salt);
+    try {
+      return await Sodium.decryptMulti(key, data);
+    } catch (e) {
+      const fallbackKey = await Sodium.deriveKeyFallback?.(
+        password.password,
+        password.salt as string
+      );
+      if (Platform.OS === "ios" && fallbackKey) {
+        DatabaseLogger.info("Using fallback key for decryption");
+      }
+      if (fallbackKey) {
+        return await Sodium.decryptMulti(fallbackKey, data);
+      } else {
+        throw e;
+      }
+    }
+  }
+
   return await Sodium.decryptMulti(password, data);
 }
 
@@ -357,14 +434,10 @@ export function parseAlgorithm(alg: string) {
   };
 }
 
-export async function encrypt(password: Password, data: string) {
-  if (!password.password && !password.key) return undefined;
-  if (password.password && password.password === "" && !password.key)
-    return undefined;
-
-  const result = await Sodium.encrypt(password, {
+export async function encrypt(password: SerializedKey, plainText: string) {
+  const result = await Sodium.encrypt<"base64">(password, {
     type: "plain",
-    data: data
+    data: plainText
   });
 
   return {
@@ -373,14 +446,13 @@ export async function encrypt(password: Password, data: string) {
   };
 }
 
-export async function encryptMulti(password: Password, data: string[]) {
-  if (!password.password && !password.key) return undefined;
-  if (password.password && password.password === "" && !password.key)
-    return undefined;
-
-  const results = await Sodium.encryptMulti(
+export async function encryptMulti(
+  password: SerializedKey,
+  plainText: string[]
+) {
+  const results = await Sodium.encryptMulti<"base64">(
     password,
-    data.map((item) => ({
+    plainText.map((item) => ({
       type: "plain",
       data: item
     }))
diff --git a/apps/mobile/app/common/database/index.js b/apps/mobile/app/common/database/index.ts
similarity index 83%
rename from apps/mobile/app/common/database/index.js
rename to apps/mobile/app/common/database/index.ts
index 9224b558f..8f63c4f0f 100644
--- a/apps/mobile/app/common/database/index.js
+++ b/apps/mobile/app/common/database/index.ts
@@ -16,26 +16,26 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
-import "./logger";
 import { database } from "@notesnook/common";
-import { logger as dbLogger } from "@notesnook/core";
-import { Platform } from "react-native";
-import * as Gzip from "react-native-gzip";
-import EventSource from "../../utils/sse/even-source-ios";
-import AndroidEventSource from "../../utils/sse/event-source";
+import { logger as dbLogger, ICompressor } from "@notesnook/core";
+import { strings } from "@notesnook/intl";
 import {
   SqliteAdapter,
   SqliteIntrospector,
   SqliteQueryCompiler
 } from "@streetwriters/kysely";
-import filesystem from "../filesystem";
-import Storage from "./storage";
-import { RNSqliteDriver } from "./sqlite.kysely";
-import { getDatabaseKey } from "./encryption";
+import { Platform } from "react-native";
+import * as Gzip from "react-native-gzip";
 import SettingsService from "../../services/settings";
-import { strings } from "@notesnook/intl";
+import EventSource from "../../utils/sse/even-source-ios";
+import AndroidEventSource from "../../utils/sse/event-source";
+import { FileStorage } from "../filesystem";
+import { getDatabaseKey } from "./encryption";
+import "./logger";
+import { RNSqliteDriver } from "./sqlite.kysely";
+import { Storage } from "./storage";
 
-export async function setupDatabase(password) {
+export async function setupDatabase(password?: string) {
   const key = await getDatabaseKey(password);
   if (!key) throw new Error(strings.databaseSetupFailed());
 
@@ -47,17 +47,21 @@ export async function setupDatabase(password) {
     SSE_HOST: "https://events.streetwriters.co",
     SUBSCRIPTIONS_HOST: "https://subscriptions.streetwriters.co",
     ISSUES_HOST: "https://issues.streetwriters.co",
+    MONOGRAPH_HOST: "https://monogr.ph",
     ...(SettingsService.getProperty("serverUrls") || {})
   });
 
   database.setup({
     storage: Storage,
-    eventsource: Platform.OS === "ios" ? EventSource : AndroidEventSource,
-    fs: filesystem,
-    compressor: () => ({
-      compress: Gzip.deflate,
-      decompress: Gzip.inflate
-    }),
+    eventsource: (Platform.OS === "ios"
+      ? EventSource
+      : AndroidEventSource) as any,
+    fs: FileStorage,
+    compressor: async () =>
+      ({
+        compress: Gzip.deflate,
+        decompress: Gzip.inflate
+      } as ICompressor),
     batchSize: 100,
     sqliteOptions: {
       dialect: (name) => ({
diff --git a/apps/mobile/app/common/database/logger.js b/apps/mobile/app/common/database/logger.ts
similarity index 100%
rename from apps/mobile/app/common/database/logger.js
rename to apps/mobile/app/common/database/logger.ts
diff --git a/apps/mobile/app/common/database/mmkv.js b/apps/mobile/app/common/database/mmkv.ts
similarity index 100%
rename from apps/mobile/app/common/database/mmkv.js
rename to apps/mobile/app/common/database/mmkv.ts
diff --git a/apps/mobile/app/common/database/sqlite.kysely.ts b/apps/mobile/app/common/database/sqlite.kysely.ts
index a5898af80..04a0c4857 100644
--- a/apps/mobile/app/common/database/sqlite.kysely.ts
+++ b/apps/mobile/app/common/database/sqlite.kysely.ts
@@ -26,7 +26,7 @@ import { CompiledQuery } from "@streetwriters/kysely";
 import { QuickSQLiteConnection, open } from "react-native-quick-sqlite";
 import { strings } from "@notesnook/intl";
 
-type Config = { dbName: string; async: boolean; location: string };
+type Config = { dbName: string; async: boolean; location?: string };
 
 export class RNSqliteDriver implements Driver {
   private connection?: DatabaseConnection;
diff --git a/apps/mobile/app/common/database/storage.js b/apps/mobile/app/common/database/storage.ts
similarity index 50%
rename from apps/mobile/app/common/database/storage.js
rename to apps/mobile/app/common/database/storage.ts
index 53c462824..e1523b108 100644
--- a/apps/mobile/app/common/database/storage.js
+++ b/apps/mobile/app/common/database/storage.ts
@@ -16,58 +16,51 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
-
-import { Platform } from "react-native";
-import RNFetchBlob from "react-native-blob-util";
+import { IStorage } from "@notesnook/core";
+import { MMKVInstance } from "react-native-mmkv-storage";
 import {
   decrypt,
   decryptMulti,
   deriveCryptoKey,
+  deriveCryptoKeyFallback,
   encrypt,
   encryptMulti,
   generateCryptoKey,
   getCryptoKey,
-  getRandomBytes,
-  hash,
-  removeCryptoKey
+  hash
 } from "./encryption";
 import { MMKV } from "./mmkv";
 
 export class KV {
-  /**
-   * @type {typeof MMKV}
-   */
-  storage = null;
-  constructor(storage) {
+  storage: MMKVInstance;
+  constructor(storage: MMKVInstance) {
     this.storage = storage;
   }
-  async read(key) {
-    if (!key) return null;
-    let data = this.storage.getString(key);
-    if (!data) return null;
+
+  async read<T>(key: string, isArray?: boolean) {
+    if (!key) return undefined;
+    const data = this.storage.getString(key);
+    if (!data) return undefined;
     try {
-      let parse = JSON.parse(data);
-      return parse;
+      return JSON.parse(data) as T;
     } catch (e) {
-      return data;
+      return data as T;
     }
   }
 
-  async write(key, data) {
+  async write<T>(key: string, data: T) {
     this.storage.setString(
       key,
       typeof data === "string" ? data : JSON.stringify(data)
     );
-
-    return true;
   }
 
-  async readMulti(keys) {
+  async readMulti<T>(keys: string[]) {
     if (keys.length <= 0) {
       return [];
     } else {
       try {
-        let data = await this.storage.getMultipleItemsAsync(
+        const data = await this.storage.getMultipleItemsAsync<any>(
           keys.slice(),
           "string"
         );
@@ -79,24 +72,24 @@ export class KV {
             obj = value;
           }
           return [key, obj];
-        });
+        }) as [string, T][];
       } catch (e) {
-        console.log(e);
+        return [];
       }
     }
   }
 
-  async remove(key) {
-    return this.storage.removeItem(key);
+  async remove(key: string) {
+    this.storage.removeItem(key);
   }
 
-  async removeMulti(keys) {
-    if (!keys) return true;
-    return this.storage.removeItems(keys);
+  async removeMulti(keys: string[]) {
+    if (!keys) return;
+    this.storage.removeItems(keys);
   }
 
   async clear() {
-    return this.storage.clearStore();
+    this.storage.clearStore();
   }
 
   async getAllKeys() {
@@ -113,54 +106,45 @@ export class KV {
     return keys;
   }
 
-  async writeMulti(items) {
-    return this.storage.setMultipleItemsAsync(items, "object");
+  async writeMulti(items: [string, any][]) {
+    await this.storage.setMultipleItemsAsync(items, "object");
   }
 }
 
 const DefaultStorage = new KV(MMKV);
 
-async function requestPermission() {
-  if (Platform.OS === "ios") return true;
-  return true;
-}
-async function checkAndCreateDir(path) {
-  let dir =
-    Platform.OS === "ios"
-      ? RNFetchBlob.fs.dirs.DocumentDir + path
-      : RNFetchBlob.fs.dirs.SDCardDir + "/Notesnook/" + path;
-
-  try {
-    let exists = await RNFetchBlob.fs.exists(dir);
-    let isDir = await RNFetchBlob.fs.isDir(dir);
-    if (!exists || !isDir) {
-      await RNFetchBlob.fs.mkdir(dir);
-    }
-  } catch (e) {
-    await RNFetchBlob.fs.mkdir(dir);
-  }
-  return dir;
-}
-
-export default {
-  read: (key) => DefaultStorage.read(key),
-  write: (key, value) => DefaultStorage.write(key, value),
-  readMulti: (keys) => DefaultStorage.readMulti(keys),
-  remove: (key) => DefaultStorage.remove(key),
-  clear: () => DefaultStorage.clear(),
-  getAllKeys: () => DefaultStorage.getAllKeys(),
-  writeMulti: (items) => DefaultStorage.writeMulti(items),
-  removeMulti: (keys) => DefaultStorage.removeMulti(keys),
+export const Storage: IStorage = {
+  write<T>(key: string, data: T): Promise<void> {
+    return DefaultStorage.write(key, data);
+  },
+  writeMulti<T>(entries: [string, T][]): Promise<void> {
+    return DefaultStorage.writeMulti(entries);
+  },
+  readMulti<T>(keys: string[]): Promise<[string, T][]> {
+    return DefaultStorage.readMulti(keys);
+  },
+  read<T>(key: string, isArray?: boolean): Promise<T | undefined> {
+    return DefaultStorage.read(key, isArray);
+  },
+  remove(key: string): Promise<void> {
+    return DefaultStorage.remove(key);
+  },
+  removeMulti(keys: string[]): Promise<void> {
+    return DefaultStorage.removeMulti(keys);
+  },
+  clear(): Promise<void> {
+    return DefaultStorage.clear();
+  },
+  getAllKeys(): Promise<string[]> {
+    return DefaultStorage.getAllKeys();
+  },
+  hash,
+  getCryptoKey,
   encrypt,
+  encryptMulti,
   decrypt,
   decryptMulti,
-  getRandomBytes,
-  checkAndCreateDir,
-  requestPermission,
   deriveCryptoKey,
-  getCryptoKey,
-  removeCryptoKey,
-  hash,
   generateCryptoKey,
-  encryptMulti
+  deriveCryptoKeyFallback
 };
diff --git a/apps/mobile/app/common/filesystem/download-attachment.js b/apps/mobile/app/common/filesystem/download-attachment.tsx
similarity index 79%
rename from apps/mobile/app/common/filesystem/download-attachment.js
rename to apps/mobile/app/common/filesystem/download-attachment.tsx
index 699eb5fe7..4a6d4bfd8 100644
--- a/apps/mobile/app/common/filesystem/download-attachment.js
+++ b/apps/mobile/app/common/filesystem/download-attachment.tsx
@@ -16,7 +16,6 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
-
 import Sodium from "@ammarahmed/react-native-sodium";
 import { getFileNameWithExtension } from "@notesnook/core";
 import { strings } from "@notesnook/intl";
@@ -26,11 +25,11 @@ import RNFetchBlob from "react-native-blob-util";
 import * as ScopedStorage from "react-native-scoped-storage";
 import { subscribe, zip } from "react-native-zip-archive";
 import { ShareComponent } from "../../components/sheets/export-notes/share";
-import { ToastManager, presentSheet } from "../../services/event-manager";
+import { presentSheet, ToastManager } from "../../services/event-manager";
 import { useAttachmentStore } from "../../stores/use-attachment-store";
 import { IOS_APPGROUPID } from "../../utils/constants";
 import { DatabaseLogger, db } from "../database";
-import Storage from "../database/storage";
+import filesystem from "../filesystem";
 import { createCacheDir, exists } from "./io";
 import { cacheDir, copyFileAsync, releasePermissions } from "./utils";
 
@@ -51,23 +50,23 @@ export async function downloadAllAttachments() {
 /**
  * Downloads provided attachments to a .zip file
  * on user's device.
- * @param {string[]} attachments
+ * @param {string[]} attachmentIds
  * @param onProgress
  * @returns
  */
-export async function downloadAttachments(attachments) {
+export async function downloadAttachments(attachmentIds: string[]) {
   await createCacheDir();
-  if (!attachments || !attachments.length) return;
+  if (!attachmentIds || !attachmentIds.length) return;
   const groupId = `download-all-${Date.now()}`;
 
   let outputFolder;
   if (Platform.OS === "android") {
     // Ask the user to select a directory to store the file
-    let file = await ScopedStorage.openDocumentTree(true);
+    const file = await ScopedStorage.openDocumentTree(true);
     outputFolder = file.uri;
     if (!outputFolder) return;
   } else {
-    outputFolder = await Storage.checkAndCreateDir("/downloads/");
+    outputFolder = await filesystem.checkAndCreateDir("/downloads/");
   }
 
   // Create the folder to zip;
@@ -83,7 +82,7 @@ export async function downloadAttachments(attachments) {
   await RNFetchBlob.fs.mkdir(zipSourceFolder);
 
   const isCancelled = () => {
-    if (useAttachmentStore.getState().downloading[groupId]?.canceled) {
+    if (useAttachmentStore.getState().downloading?.[groupId]?.canceled) {
       RNFetchBlob.fs.unlink(zipSourceFolder).catch(console.log);
       useAttachmentStore.getState().setDownloading({
         groupId,
@@ -97,19 +96,21 @@ export async function downloadAttachments(attachments) {
     }
   };
 
-  for (let i = 0; i < attachments.length; i++) {
+  for (let i = 0; i < attachmentIds.length; i++) {
     if (isCancelled()) return;
-    let attachment = await db.attachments.attachment(attachments[i]);
+    const attachment = await db.attachments.attachment(attachmentIds[i]);
+    if (!attachment) continue;
+
     const hash = attachment.hash;
     try {
       useAttachmentStore.getState().setDownloading({
         groupId: groupId,
         current: i + 1,
-        total: attachments.length,
+        total: attachmentIds.length,
         filename: attachment.hash
       });
       // Download to cache
-      let uri = await downloadAttachment(hash, false, {
+      const uri = await downloadAttachment(hash, false, {
         silent: true,
         cache: true,
         groupId: groupId
@@ -184,7 +185,7 @@ export async function downloadAttachments(attachments) {
     });
     releasePermissions(outputFolder);
     sub?.remove();
-    ToastManager.error(e, "Error zipping attachments");
+    ToastManager.error(e as Error, "Error zipping attachments");
   }
   // Remove source & zip file from cache.
   RNFetchBlob.fs.unlink(zipSourceFolder).catch(console.log);
@@ -194,38 +195,44 @@ export async function downloadAttachments(attachments) {
 }
 
 export default async function downloadAttachment(
-  hash,
+  hashOrId: string,
   global = true,
-  options = {
-    silent: false,
-    cache: false,
-    throwError: false,
-    groupId: undefined,
-    base64: false,
-    text: false
+  options?: {
+    silent?: boolean;
+    cache?: boolean;
+    throwError?: boolean;
+    groupId?: string;
+    base64?: boolean;
+    text?: boolean;
   }
 ) {
   await createCacheDir();
 
-  let attachment = await db.attachments.attachment(hash);
+  const attachment = await db.attachments.attachment(hashOrId);
   if (!attachment) {
-    DatabaseLogger.log("Attachment not found");
+    DatabaseLogger.log("Attachment not found", {
+      hash: hashOrId
+    });
     return;
   }
 
-  let folder = {};
-  if (!options.cache) {
+  let folder: {
+    uri: string;
+  } | null = null;
+  if (!options?.cache) {
     if (Platform.OS === "android") {
       folder = await ScopedStorage.openDocumentTree();
       if (!folder) return;
     } else {
-      folder.uri = await Storage.checkAndCreateDir("/downloads/");
+      folder = {
+        uri: await filesystem.checkAndCreateDir("/downloads/")
+      };
     }
   }
 
   try {
     useAttachmentStore.getState().setDownloading({
-      groupId: options.groupId || attachment.hash,
+      groupId: options?.groupId || attachment.hash,
       current: 0,
       total: 1,
       filename: attachment.filename
@@ -234,13 +241,13 @@ export default async function downloadAttachment(
     await db
       .fs()
       .downloadFile(
-        options.groupId || attachment.hash,
+        options?.groupId || attachment.hash,
         attachment.hash,
         attachment.chunkSize
       );
 
     useAttachmentStore.getState().setDownloading({
-      groupId: options.groupId || attachment.hash,
+      groupId: options?.groupId || attachment.hash,
       current: 1,
       total: 1,
       filename: attachment.filename,
@@ -252,7 +259,7 @@ export default async function downloadAttachment(
       return;
     }
 
-    if (options.base64 || options.text) {
+    if (options?.base64 || options?.text) {
       DatabaseLogger.log(`Starting to decrypt... hash: ${attachment.hash}`);
       return await db.attachments.read(
         attachment.hash,
@@ -260,14 +267,16 @@ export default async function downloadAttachment(
       );
     }
 
-    let filename = await getFileNameWithExtension(
+    const filename = await getFileNameWithExtension(
       attachment.filename,
       attachment.mimeType
     );
 
-    let key = await db.attachments.decryptKey(attachment.key);
+    const key = await db.attachments.decryptKey(attachment.key);
 
-    let info = {
+    if (!key) return;
+
+    const info = {
       iv: attachment.iv,
       salt: attachment.salt,
       length: attachment.size,
@@ -275,18 +284,18 @@ export default async function downloadAttachment(
       hash: attachment.hash,
       hashType: attachment.hashType,
       mime: attachment.mimeType,
-      fileName: options.cache ? undefined : filename,
-      uri: options.cache ? undefined : folder.uri,
+      fileName: options?.cache ? undefined : filename,
+      uri: options?.cache ? undefined : folder?.uri,
       chunkSize: attachment.chunkSize,
       appGroupId: IOS_APPGROUPID
     };
     let fileUri = await Sodium.decryptFile(
       key,
       info,
-      options.cache ? "cache" : "file"
+      options?.cache ? "cache" : "file"
     );
 
-    if (!options.silent) {
+    if (!options?.silent) {
       ToastManager.show({
         heading: strings.network.downloadSuccess(),
         message: strings.network.fileDownloaded(filename),
@@ -294,15 +303,15 @@ export default async function downloadAttachment(
       });
     }
 
-    if (Platform.OS === "ios" && !options.cache) {
-      fileUri = folder.uri + `/${filename}`;
+    if (Platform.OS === "ios" && !options?.cache) {
+      fileUri = folder?.uri + `/${filename}`;
     }
-    if (!options.silent) {
+    if (!options?.silent) {
       presentSheet({
         title: strings.network.fileDownloaded(),
         paragraph: strings.fileSaved(filename, Platform.OS),
         icon: "download",
-        context: global ? null : attachment.hash,
+        context: global ? "global" : attachment.hash,
         component: <ShareComponent uri={fileUri} name={filename} padding={12} />
       });
     }
@@ -319,7 +328,7 @@ export default async function downloadAttachment(
     }
 
     useAttachmentStore.getState().setDownloading({
-      groupId: options.groupId || attachment.hash,
+      groupId: options?.groupId || attachment.hash,
       current: 0,
       total: 0,
       filename: attachment.filename,
@@ -327,7 +336,7 @@ export default async function downloadAttachment(
     });
     DatabaseLogger.error(e);
     useAttachmentStore.getState().remove(attachment.hash);
-    if (options.throwError) {
+    if (options?.throwError) {
       throw e;
     }
   }
diff --git a/apps/mobile/app/common/filesystem/download.js b/apps/mobile/app/common/filesystem/download.ts
similarity index 76%
rename from apps/mobile/app/common/filesystem/download.js
rename to apps/mobile/app/common/filesystem/download.ts
index ae341f12d..f1062b4e7 100644
--- a/apps/mobile/app/common/filesystem/download.js
+++ b/apps/mobile/app/common/filesystem/download.ts
@@ -17,6 +17,7 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+import { RequestOptions } from "@notesnook/core";
 import { strings } from "@notesnook/intl";
 import NetInfo from "@react-native-community/netinfo";
 import RNFetchBlob from "react-native-blob-util";
@@ -26,7 +27,13 @@ import { DatabaseLogger, db } from "../database";
 import { createCacheDir, exists } from "./io";
 import { ABYTES, cacheDir, getUploadedFileSize, parseS3Error } from "./utils";
 
-export async function downloadFile(filename, requestOptions, cancelToken) {
+export async function downloadFile(
+  filename: string,
+  requestOptions: RequestOptions,
+  cancelToken: {
+    cancel: (reason?: string) => Promise<void>;
+  }
+) {
   if (!requestOptions) {
     DatabaseLogger.log(
       `Error downloading file: ${filename}, reason: No requestOptions`
@@ -36,9 +43,11 @@ export async function downloadFile(filename, requestOptions, cancelToken) {
 
   DatabaseLogger.log(`Downloading ${filename}`);
   await createCacheDir();
-  let { url, headers, chunkSize } = requestOptions;
-  let tempFilePath = `${cacheDir}/${filename}_temp`;
-  let originalFilePath = `${cacheDir}/${filename}`;
+
+  const { url, headers, chunkSize } = requestOptions;
+  const tempFilePath = `${cacheDir}/${filename}_temp`;
+  const originalFilePath = `${cacheDir}/${filename}`;
+
   try {
     if (await exists(filename)) {
       DatabaseLogger.log(`File Exists already: ${filename}`);
@@ -46,6 +55,8 @@ export async function downloadFile(filename, requestOptions, cancelToken) {
     }
 
     const attachment = await db.attachments.attachment(filename);
+    if (!attachment) return false;
+
     const size = await getUploadedFileSize(filename);
 
     if (size === -1) {
@@ -71,21 +82,21 @@ export async function downloadFile(filename, requestOptions, cancelToken) {
       throw new Error(error);
     }
 
-    let res = await fetch(url, {
+    const resolveUrlResponse = await fetch(url, {
       method: "GET",
       headers
     });
 
-    if (!res.ok) {
+    if (!resolveUrlResponse.ok) {
       DatabaseLogger.log(
-        `Error downloading file: ${filename}, ${res.status}, ${res.statusText}, reason: Unable to resolve download url`
+        `Error downloading file: ${filename}, ${resolveUrlResponse.status}, ${resolveUrlResponse.statusText}, reason: Unable to resolve download url`
       );
       throw new Error(
-        `${res.status}: ${strings.failedToResolvedDownloadUrl()}`
+        `${resolveUrlResponse.status}: ${strings.failedToResolvedDownloadUrl()}`
       );
     }
 
-    const downloadUrl = await res.text();
+    const downloadUrl = await resolveUrlResponse.text();
 
     if (!downloadUrl) {
       DatabaseLogger.log(
@@ -95,12 +106,12 @@ export async function downloadFile(filename, requestOptions, cancelToken) {
     }
 
     DatabaseLogger.log(`Download starting: ${filename}`);
-    let request = RNFetchBlob.config({
+    const request = RNFetchBlob.config({
       path: tempFilePath,
       IOSBackgroundTask: true,
       overwrite: true
     })
-      .fetch("GET", downloadUrl, null)
+      .fetch("GET", downloadUrl)
       .progress(async (recieved, total) => {
         useAttachmentStore
           .getState()
@@ -109,15 +120,14 @@ export async function downloadFile(filename, requestOptions, cancelToken) {
         DatabaseLogger.log(`Downloading: ${filename}, ${recieved}/${total}`);
       });
 
-    cancelToken.cancel = () => {
+    cancelToken.cancel = async (reason) => {
       useAttachmentStore.getState().remove(filename);
       request.cancel();
       RNFetchBlob.fs.unlink(tempFilePath).catch(console.log);
-      DatabaseLogger.log(`Download cancelled: ${filename}`);
+      DatabaseLogger.log(`Download cancelled: ${reason} ${filename}`);
     };
 
-    let response = await request;
-    console.log(response.info().headers);
+    const response = await request;
 
     const contentType =
       response.info().headers?.["content-type"] ||
@@ -128,10 +138,10 @@ export async function downloadFile(filename, requestOptions, cancelToken) {
       throw new Error(`[${error.Code}] ${error.Message}`);
     }
 
-    let status = response.info().status;
+    const status = response.info().status;
     useAttachmentStore.getState().remove(filename);
 
-    if (exists(originalFilePath)) {
+    if (await exists(originalFilePath)) {
       await RNFetchBlob.fs.unlink(originalFilePath).catch(console.log);
     }
 
@@ -143,11 +153,14 @@ export async function downloadFile(filename, requestOptions, cancelToken) {
 
     return status >= 200 && status < 300;
   } catch (e) {
-    if (e.message !== "canceled" && !e.message.includes("NoSuchKey")) {
+    if (
+      (e as Error).message !== "canceled" &&
+      !(e as Error).message.includes("NoSuchKey")
+    ) {
       const toast = {
-        heading: strings.downloadError(),
-        message: e.message,
-        type: "error",
+        heading: strings.downloadError((e as Error).message),
+        message: (e as Error).message,
+        type: "error" as const,
         context: "global"
       };
       ToastManager.show(toast);
@@ -158,15 +171,14 @@ export async function downloadFile(filename, requestOptions, cancelToken) {
     useAttachmentStore.getState().remove(filename);
     RNFetchBlob.fs.unlink(tempFilePath).catch(console.log);
     RNFetchBlob.fs.unlink(originalFilePath).catch(console.log);
-    DatabaseLogger.error(e, {
-      url,
-      headers
+    DatabaseLogger.error(e, "Download failed: ", {
+      url
     });
     return false;
   }
 }
 
-export async function checkAttachment(hash) {
+export async function checkAttachment(hash: string) {
   const internetState = await NetInfo.fetch();
   const isInternetReachable =
     internetState.isConnected && internetState.isInternetReachable;
@@ -184,7 +196,7 @@ export async function checkAttachment(hash) {
         failed: `File length is 0. Please upload this file again from the attachment manager. (File hash: ${hash})`
       };
   } catch (e) {
-    return { failed: e?.message };
+    return { failed: (e as Error)?.message };
   }
   return { success: true };
 }
diff --git a/apps/mobile/app/common/filesystem/index.js b/apps/mobile/app/common/filesystem/index.ts
similarity index 81%
rename from apps/mobile/app/common/filesystem/index.js
rename to apps/mobile/app/common/filesystem/index.ts
index 3fc7afa13..676ec4665 100644
--- a/apps/mobile/app/common/filesystem/index.js
+++ b/apps/mobile/app/common/filesystem/index.ts
@@ -17,24 +17,40 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+import { IFileStorage } from "@notesnook/core";
 import { checkAttachment, downloadFile } from "./download";
 import {
+  bulkExists,
+  clearCache,
   clearFileStorage,
+  deleteCacheFileByName,
+  deleteCacheFileByPath,
   deleteFile,
   exists,
-  readEncrypted,
-  writeEncryptedBase64,
+  getCacheSize,
   hashBase64,
+  readEncrypted,
+  writeEncryptedBase64
+} from "./io";
+import { uploadFile } from "./upload";
+import {
+  cancelable,
+  checkAndCreateDir,
+  getUploadedFileSize,
+  requestPermission
+} from "./utils";
+
+export default {
+  checkAttachment,
   clearCache,
   deleteCacheFileByName,
   deleteCacheFileByPath,
-  bulkExists,
-  getCacheSize
-} from "./io";
-import { uploadFile } from "./upload";
-import { cancelable, getUploadedFileSize } from "./utils";
+  getCacheSize,
+  requestPermission,
+  checkAndCreateDir
+};
 
-export default {
+export const FileStorage: IFileStorage = {
   readEncrypted,
   writeEncryptedBase64,
   hashBase64,
@@ -44,10 +60,5 @@ export default {
   exists,
   clearFileStorage,
   getUploadedFileSize,
-  checkAttachment,
-  clearCache,
-  deleteCacheFileByName,
-  deleteCacheFileByPath,
-  bulkExists,
-  getCacheSize
+  bulkExists
 };
diff --git a/apps/mobile/app/common/filesystem/io.js b/apps/mobile/app/common/filesystem/io.ts
similarity index 70%
rename from apps/mobile/app/common/filesystem/io.js
rename to apps/mobile/app/common/filesystem/io.ts
index e21b85f8c..69c0d0c62 100644
--- a/apps/mobile/app/common/filesystem/io.js
+++ b/apps/mobile/app/common/filesystem/io.ts
@@ -18,6 +18,13 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 import Sodium from "@ammarahmed/react-native-sodium";
+import {
+  FileEncryptionMetadataWithHash,
+  FileEncryptionMetadataWithOutputType,
+  Output,
+  RequestOptions
+} from "@notesnook/core";
+import { DataFormat, SerializedKey } from "@notesnook/crypto";
 import { Platform } from "react-native";
 import RNFetchBlob from "react-native-blob-util";
 import { eSendEvent } from "../../services/event-manager";
@@ -25,17 +32,21 @@ import { IOS_APPGROUPID } from "../../utils/constants";
 import { DatabaseLogger, db } from "../database";
 import { ABYTES, cacheDir, cacheDirOld, getRandomId } from "./utils";
 
-export async function readEncrypted(filename, key, cipherData) {
+export async function readEncrypted<TOutputFormat extends DataFormat>(
+  filename: string,
+  key: SerializedKey,
+  cipherData: FileEncryptionMetadataWithOutputType<TOutputFormat>
+) {
   await migrateFilesFromCache();
   DatabaseLogger.log("Read encrypted file...");
-  let path = `${cacheDir}/${filename}`;
+  const path = `${cacheDir}/${filename}`;
 
   try {
     if (!(await exists(filename))) {
-      return false;
+      return;
     }
 
-    let output = await Sodium.decryptFile(
+    const output = await Sodium.decryptFile(
       key,
       {
         ...cipherData,
@@ -47,15 +58,14 @@ export async function readEncrypted(filename, key, cipherData) {
 
     DatabaseLogger.log("File decrypted...");
 
-    return output;
+    return output as Output<TOutputFormat>;
   } catch (e) {
     RNFetchBlob.fs.unlink(path).catch(console.log);
     DatabaseLogger.error(e);
-    return false;
   }
 }
 
-export async function hashBase64(data) {
+export async function hashBase64(data: string) {
   const hash = await Sodium.hashFile({
     type: "base64",
     data,
@@ -67,61 +77,70 @@ export async function hashBase64(data) {
   };
 }
 
-export async function writeEncryptedBase64(data, key) {
+export async function writeEncryptedBase64(
+  data: string,
+  encryptionKey: SerializedKey,
+  mimeType: string
+): Promise<FileEncryptionMetadataWithHash> {
   await createCacheDir();
-  let filepath = cacheDir + `/${getRandomId("imagecache_")}`;
+  const filepath = cacheDir + `/${getRandomId("imagecache_")}`;
   await RNFetchBlob.fs.writeFile(filepath, data, "base64");
-  let output = await Sodium.encryptFile(key, {
+  const output = await Sodium.encryptFile(encryptionKey, {
     uri: Platform.OS === "ios" ? filepath : "file://" + filepath,
     type: "url"
   });
+
   RNFetchBlob.fs.unlink(filepath).catch(console.log);
   console.log("encrypted file output: ", output);
-  output.size = output.length;
-  delete output.length;
+
   return {
     ...output,
     alg: "xcha-stream"
   };
 }
 
-export async function deleteFile(filename, data) {
+export async function deleteFile(
+  filename: string,
+  requestOptions?: RequestOptions
+): Promise<boolean> {
   await createCacheDir();
-  let delFilePath = cacheDir + `/${filename}`;
-  if (!data) {
-    if (!filename) return;
-    RNFetchBlob.fs.unlink(delFilePath).catch(console.log);
+  const localFilePath = cacheDir + `/${filename}`;
+  if (!requestOptions) {
+    RNFetchBlob.fs.unlink(localFilePath).catch(console.log);
     return true;
   }
 
-  let { url, headers } = data;
+  const { url, headers } = requestOptions;
+
   try {
-    let response = await RNFetchBlob.fetch("DELETE", url, headers);
-    let status = response.info().status;
-    let ok = status >= 200 && status < 300;
+    const response = await RNFetchBlob.fetch("DELETE", url, headers);
+    const status = response.info().status;
+    const ok = status >= 200 && status < 300;
     if (ok) {
-      RNFetchBlob.fs.unlink(delFilePath).catch(console.log);
+      RNFetchBlob.fs.unlink(localFilePath).catch(console.log);
     }
     return ok;
   } catch (e) {
-    console.log("delete file: ", e, url, headers);
+    DatabaseLogger.error(e, "Delete file", {
+      url: url
+    });
     return false;
   }
 }
 
 export async function clearFileStorage() {
   try {
-    let files = await RNFetchBlob.fs.ls(cacheDir);
-    let oldCache = await RNFetchBlob.fs.ls(cacheDirOld);
+    const files = await RNFetchBlob.fs.ls(cacheDir);
+    const oldCache = await RNFetchBlob.fs.ls(cacheDirOld);
 
-    for (let file of files) {
+    for (const file of files) {
       await RNFetchBlob.fs.unlink(cacheDir + `/${file}`).catch(console.log);
     }
-    for (let file of oldCache) {
+    for (const file of oldCache) {
       await RNFetchBlob.fs.unlink(cacheDirOld + `/${file}`).catch(console.log);
     }
   } catch (e) {
-    console.log("clearFileStorage", e);
+    DatabaseLogger.error(e, "clearFileStorage");
   }
 }
 
@@ -146,11 +165,11 @@ export async function migrateFilesFromCache() {
       return;
     }
 
-    let files = await RNFetchBlob.fs.ls(cacheDir);
+    const files = await RNFetchBlob.fs.ls(cacheDir);
     console.log("Files to migrate:", files.join(","));
 
-    let oldCache = await RNFetchBlob.fs.ls(cacheDirOld);
-    for (let file of oldCache) {
+    const oldCache = await RNFetchBlob.fs.ls(cacheDirOld);
+    for (const file of oldCache) {
       if (file.startsWith("org.") || file.startsWith("com.")) continue;
       RNFetchBlob.fs
         .mv(cacheDirOld + `/${file}`, cacheDir + `/${file}`)
@@ -159,7 +178,7 @@ export async function migrateFilesFromCache() {
     }
     await RNFetchBlob.fs.createFile(migratedFilesPath, "1", "utf8");
   } catch (e) {
-    console.log("migrateFilesFromCache", e);
+    DatabaseLogger.error(e, "migrateFilesFromCache");
   }
 }
 
@@ -169,14 +188,14 @@ export async function clearCache() {
   eSendEvent("cache-cleared");
 }
 
-export async function deleteCacheFileByPath(path) {
+export async function deleteCacheFileByPath(path: string) {
   await RNFetchBlob.fs.unlink(path).catch(console.log);
 }
 
-export async function deleteCacheFileByName(name) {
+export async function deleteCacheFileByName(name: string) {
   const iosAppGroup =
     Platform.OS === "ios"
-      ? await RNFetchBlob.fs.pathForAppGroup(IOS_APPGROUPID)
+      ? await (RNFetchBlob.fs as any).pathForAppGroup(IOS_APPGROUPID)
       : null;
   const appGroupPath = `${iosAppGroup}/${name}`;
   await RNFetchBlob.fs.unlink(appGroupPath).catch(console.log);
@@ -192,12 +211,12 @@ export async function deleteDCacheFiles() {
   }
 }
 
-export async function exists(filename) {
-  let path = `${cacheDir}/${filename}`;
+export async function exists(filename: string) {
+  const path = `${cacheDir}/${filename}`;
 
   const iosAppGroup =
     Platform.OS === "ios"
-      ? await RNFetchBlob.fs.pathForAppGroup(IOS_APPGROUPID)
+      ? await (RNFetchBlob.fs as any).pathForAppGroup(IOS_APPGROUPID)
       : null;
   const appGroupPath = `${iosAppGroup}/${filename}`;
 
@@ -211,6 +230,7 @@ export async function exists(filename) {
 
   if (exists || existsInAppGroup) {
     const attachment = await db.attachments.attachment(filename);
+    if (!attachment) return false;
     const totalChunks = Math.ceil(attachment.size / attachment.chunkSize);
     const totalAbytes = totalChunks * ABYTES;
     const expectedFileSize = attachment.size + totalAbytes;
@@ -234,7 +254,7 @@ export async function exists(filename) {
   return exists;
 }
 
-export async function bulkExists(files) {
+export async function bulkExists(files: string[]) {
   try {
     await createCacheDir();
     const cacheFiles = await RNFetchBlob.fs.ls(cacheDir);
@@ -243,7 +263,7 @@ export async function bulkExists(files) {
     if (Platform.OS === "ios") {
       const iosAppGroup =
         Platform.OS === "ios"
-          ? await RNFetchBlob.fs.pathForAppGroup(IOS_APPGROUPID)
+          ? await (RNFetchBlob.fs as any).pathForAppGroup(IOS_APPGROUPID)
           : null;
       const appGroupFiles = await RNFetchBlob.fs.ls(iosAppGroup);
       missingFiles = missingFiles.filter(
@@ -262,8 +282,8 @@ export async function getCacheSize() {
   const stat = await RNFetchBlob.fs.lstat(`file://` + cacheDir);
   let total = 0;
   console.log("Total files", stat.length);
-  stat.forEach((s) => {
-    total += parseInt(s.size);
+  stat.forEach((file) => {
+    total += parseInt(file.size as unknown as string);
   });
   return total;
 }
diff --git a/apps/mobile/app/common/filesystem/upload.js b/apps/mobile/app/common/filesystem/upload.ts
similarity index 77%
rename from apps/mobile/app/common/filesystem/upload.js
rename to apps/mobile/app/common/filesystem/upload.ts
index 377144dbb..c55f8d87d 100644
--- a/apps/mobile/app/common/filesystem/upload.js
+++ b/apps/mobile/app/common/filesystem/upload.ts
@@ -17,6 +17,7 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+import { RequestOptions } from "@notesnook/core";
 import { Platform } from "react-native";
 import RNFetchBlob from "react-native-blob-util";
 import { ToastManager } from "../../services/event-manager";
@@ -24,11 +25,22 @@ import { useAttachmentStore } from "../../stores/use-attachment-store";
 import { IOS_APPGROUPID } from "../../utils/constants";
 import { DatabaseLogger, db } from "../database";
 import { createCacheDir } from "./io";
-import { cacheDir, checkUpload, getUploadedFileSize } from "./utils";
+import {
+  cacheDir,
+  checkUpload,
+  FileSizeResult,
+  getUploadedFileSize
+} from "./utils";
 
-export async function uploadFile(filename, requestOptions, cancelToken) {
+export async function uploadFile(
+  filename: string,
+  requestOptions: RequestOptions,
+  cancelToken: {
+    cancel: (reason?: string) => Promise<void>;
+  }
+) {
   if (!requestOptions) return false;
-  let { url, headers } = requestOptions;
+  const { url, headers } = requestOptions;
   await createCacheDir();
   DatabaseLogger.info(`Preparing to upload file: ${filename}`);
 
@@ -39,7 +51,7 @@ export async function uploadFile(filename, requestOptions, cancelToken) {
     if (!exists && Platform.OS === "ios") {
       const iosAppGroup =
         Platform.OS === "ios"
-          ? await RNFetchBlob.fs.pathForAppGroup(IOS_APPGROUPID)
+          ? await (RNFetchBlob.fs as any).pathForAppGroup(IOS_APPGROUPID)
           : null;
       const appGroupPath = `${iosAppGroup}/${filename}`;
       filePath = appGroupPath;
@@ -54,14 +66,15 @@ export async function uploadFile(filename, requestOptions, cancelToken) {
 
     const fileSize = (await RNFetchBlob.fs.stat(filePath)).size;
 
-    let remoteFileSize = await getUploadedFileSize(filename);
-    if (remoteFileSize === -1) return false;
-    if (remoteFileSize > 0 && remoteFileSize === fileSize) {
+    const remoteFileSize = await getUploadedFileSize(filename);
+    if (remoteFileSize === FileSizeResult.Error) return false;
+
+    if (remoteFileSize > FileSizeResult.Empty && remoteFileSize === fileSize) {
       DatabaseLogger.log(`File ${filename} is already uploaded.`);
       return true;
     }
 
-    let uploadUrlResponse = await fetch(url, {
+    const uploadUrlResponse = await fetch(url, {
       method: "PUT",
       headers
     });
@@ -78,7 +91,8 @@ export async function uploadFile(filename, requestOptions, cancelToken) {
 
     DatabaseLogger.info(`Starting upload: ${filename}`);
 
-    let uploadRequest = RNFetchBlob.config({
+    const uploadRequest = RNFetchBlob.config({
+      //@ts-ignore
       IOSBackgroundTask: !globalThis["IS_SHARE_EXTENSION"]
     })
       .fetch(
@@ -98,14 +112,14 @@ export async function uploadFile(filename, requestOptions, cancelToken) {
         );
       });
 
-    cancelToken.cancel = () => {
+    cancelToken.cancel = async () => {
       useAttachmentStore.getState().remove(filename);
       uploadRequest.cancel();
     };
 
-    let uploadResponse = await uploadRequest;
-    let status = uploadResponse.info().status;
-    let uploaded = status >= 200 && status < 300;
+    const uploadResponse = await uploadRequest;
+    const status = uploadResponse.info().status;
+    const uploaded = status >= 200 && status < 300;
 
     useAttachmentStore.getState().remove(filename);
 
@@ -118,12 +132,13 @@ export async function uploadFile(filename, requestOptions, cancelToken) {
       );
     }
     const attachment = await db.attachments.attachment(filename);
+    if (!attachment) return false;
     await checkUpload(filename, requestOptions.chunkSize, attachment.size);
     DatabaseLogger.info(`File upload status: ${filename}, ${status}`);
     return uploaded;
   } catch (e) {
     useAttachmentStore.getState().remove(filename);
-    ToastManager.error(e, "File upload failed");
+    ToastManager.error(e as Error, "File upload failed");
     DatabaseLogger.error(e, "File upload failed", {
       filename
     });
diff --git a/apps/mobile/app/common/filesystem/utils.js b/apps/mobile/app/common/filesystem/utils.ts
similarity index 65%
rename from apps/mobile/app/common/filesystem/utils.js
rename to apps/mobile/app/common/filesystem/utils.ts
index 0f312debb..b248cf613 100644
--- a/apps/mobile/app/common/filesystem/utils.js
+++ b/apps/mobile/app/common/filesystem/utils.ts
@@ -17,11 +17,11 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+import { hosts, RequestOptions } from "@notesnook/core";
 import { Platform } from "react-native";
 import RNFetchBlob from "react-native-blob-util";
 import * as ScopedStorage from "react-native-scoped-storage";
 import { DatabaseLogger, db } from "../database";
-import { hosts } from "@notesnook/core";
 
 export const ABYTES = 17;
 export const cacheDirOld = RNFetchBlob.fs.dirs.CacheDir;
@@ -31,18 +31,13 @@ export const cacheDir =
     ? RNFetchBlob.fs.dirs.LibraryDir + "/.cache"
     : RNFetchBlob.fs.dirs.DocumentDir + "/.cache";
 
-export function getRandomId(prefix) {
+export function getRandomId(prefix: string) {
   return Math.random()
     .toString(36)
     .replace("0.", prefix || "");
 }
 
-/**
- *
- * @param {string | undefined} data
- * @returns
- */
-export function parseS3Error(data) {
+export function parseS3Error(data?: string) {
   const xml = typeof data === "string" ? data : null;
 
   const error = {
@@ -70,11 +65,19 @@ export function parseS3Error(data) {
   }
 }
 
-export function cancelable(operation) {
+export function cancelable(
+  operation: (
+    filename: string,
+    requestOptions: RequestOptions,
+    cancelToken: {
+      cancel: (reason?: string) => Promise<void>;
+    }
+  ) => Promise<boolean>
+) {
   const cancelToken = {
-    cancel: () => {}
+    cancel: async (reason?: string) => {}
   };
-  return (filename, requestOptions) => {
+  return (filename: string, requestOptions: RequestOptions) => {
     return {
       execute: () => operation(filename, requestOptions, cancelToken),
       cancel: async () => {
@@ -84,29 +87,35 @@ export function cancelable(operation) {
   };
 }
 
-export function copyFileAsync(source, dest) {
+export function copyFileAsync(source: string, dest: string) {
   return new Promise((resolve, reject) => {
-    ScopedStorage.copyFile(source, dest, (e, r) => {
+    //@ts-ignore
+    ScopedStorage.copyFile(source, dest, (e: any, r: any) => {
       if (e) {
         reject(e);
         return;
       }
-      resolve();
+      resolve(true);
     });
   });
 }
 
-export async function releasePermissions(path) {
+export async function releasePermissions(path: string) {
   if (Platform.OS === "ios") return;
   const uris = await ScopedStorage.getPersistedUriPermissions();
-  for (let uri of uris) {
+  for (const uri of uris) {
     if (path.startsWith(uri)) {
       await ScopedStorage.releasePersistableUriPermission(uri);
     }
   }
 }
 
-export async function getUploadedFileSize(hash) {
+export const FileSizeResult = {
+  Empty: 0,
+  Error: -1
+};
+
+export async function getUploadedFileSize(hash: string) {
   try {
     const url = `${hosts.API_HOST}/s3?name=${hash}`;
     const token = await db.tokenManager.getAccessToken();
@@ -115,16 +124,20 @@ export async function getUploadedFileSize(hash) {
       headers: { Authorization: `Bearer ${token}` }
     });
     const contentLength = parseInt(
-      attachmentInfo.headers?.get("content-length")
+      attachmentInfo.headers?.get("content-length") || "0"
     );
-    return isNaN(contentLength) ? 0 : contentLength;
+    return isNaN(contentLength) ? FileSizeResult.Empty : contentLength;
   } catch (e) {
     DatabaseLogger.error(e);
-    return -1;
+    return FileSizeResult.Error;
   }
 }
 
-export async function checkUpload(filename, chunkSize, expectedSize) {
+export async function checkUpload(
+  filename: string,
+  chunkSize: number,
+  expectedSize: number
+) {
   const size = await getUploadedFileSize(filename);
   const totalChunks = Math.ceil(size / chunkSize);
   const decryptedLength = size - totalChunks * ABYTES;
@@ -138,3 +151,25 @@ export async function checkUpload(filename, chunkSize, expectedSize) {
       : undefined;
   if (error) throw new Error(error);
 }
+
+export async function requestPermission() {
+  if (Platform.OS === "ios") return true;
+  return true;
+}
+export async function checkAndCreateDir(path: string) {
+  const dir =
+    Platform.OS === "ios"
+      ? RNFetchBlob.fs.dirs.DocumentDir + path
+      : RNFetchBlob.fs.dirs.SDCardDir + "/Notesnook/" + path;
+
+  try {
+    const exists = await RNFetchBlob.fs.exists(dir);
+    const isDir = await RNFetchBlob.fs.isDir(dir);
+    if (!exists || !isDir) {
+      await RNFetchBlob.fs.mkdir(dir);
+    }
+  } catch (e) {
+    await RNFetchBlob.fs.mkdir(dir);
+  }
+  return dir;
+}
diff --git a/apps/mobile/app/components/auth/change-password.js b/apps/mobile/app/components/auth/change-password.js
index bab16f0a8..679cfa0eb 100644
--- a/apps/mobile/app/components/auth/change-password.js
+++ b/apps/mobile/app/components/auth/change-password.js
@@ -68,9 +68,14 @@ export const ChangePassword = () => {
     }
     setLoading(true);
     try {
-      const result = await BackupService.run(false, "change-password-dialog");
-      if (!result.error)
+      const result = await BackupService.run(
+        false,
+        "change-password-dialog",
+        "partial"
+      );
+      if (result.error) {
         throw new Error(strings.backupFailed() + `: ${result.error}`);
+      }
 
       await db.user.clearSessions();
       await db.user.changePassword(oldPassword.current, password.current);
diff --git a/apps/mobile/app/components/sheets/recovery-key/index.js b/apps/mobile/app/components/sheets/recovery-key/index.jsx
similarity index 98%
rename from apps/mobile/app/components/sheets/recovery-key/index.js
rename to apps/mobile/app/components/sheets/recovery-key/index.jsx
index 04db61ec8..2d0d3b5d0 100644
--- a/apps/mobile/app/components/sheets/recovery-key/index.js
+++ b/apps/mobile/app/components/sheets/recovery-key/index.jsx
@@ -17,12 +17,17 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+import { sanitizeFilename } from "@notesnook/common";
+import { strings } from "@notesnook/intl";
 import Clipboard from "@react-native-clipboard/clipboard";
 import React, { createRef } from "react";
 import { Platform, View } from "react-native";
+import RNFetchBlob from "react-native-blob-util";
 import FileViewer from "react-native-file-viewer";
 import * as ScopedStorage from "react-native-scoped-storage";
 import Share from "react-native-share";
+import { db } from "../../../common/database";
+import filesystem from "../../../common/filesystem";
 import {
   eSubscribeEvent,
   eUnSubscribeEvent,
@@ -30,8 +35,6 @@ import {
 } from "../../../services/event-manager";
 import { clearMessage } from "../../../services/message";
 import SettingsService from "../../../services/settings";
-import { db } from "../../../common/database";
-import Storage from "../../../common/database/storage";
 import { eOpenRecoveryKeyDialog } from "../../../utils/events";
 import { SIZE } from "../../../utils/size";
 import { sleep } from "../../../utils/time";
@@ -41,9 +44,6 @@ import Seperator from "../../ui/seperator";
 import SheetWrapper from "../../ui/sheet";
 import { QRCode } from "../../ui/svg/lazy";
 import Paragraph from "../../ui/typography/paragraph";
-import RNFetchBlob from "react-native-blob-util";
-import { sanitizeFilename } from "@notesnook/common";
-import { strings } from "@notesnook/intl";
 
 class RecoveryKeySheet extends React.Component {
   constructor(props) {
@@ -126,7 +126,7 @@ class RecoveryKeySheet extends React.Component {
             "base64"
           );
         } else {
-          path = await Storage.checkAndCreateDir("/");
+          path = await filesystem.checkAndCreateDir("/");
           await RNFetchBlob.fs.writeFile(path + fileName, data, "base64");
         }
         ToastManager.show({
@@ -157,7 +157,7 @@ class RecoveryKeySheet extends React.Component {
         if (!file) return;
         path = file.uri;
       } else {
-        path = await Storage.checkAndCreateDir("/");
+        path = await filesystem.checkAndCreateDir("/");
         await RNFetchBlob.fs.writeFile(path + fileName, this.state.key, "utf8");
         path = path + fileName;
       }
diff --git a/apps/mobile/app/screens/settings/debug.tsx b/apps/mobile/app/screens/settings/debug.tsx
index ebdd74576..bb6cd259c 100644
--- a/apps/mobile/app/screens/settings/debug.tsx
+++ b/apps/mobile/app/screens/settings/debug.tsx
@@ -17,24 +17,24 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-import Clipboard from "@react-native-clipboard/clipboard";
-import { LogMessage } from "@notesnook/logger";
+import { sanitizeFilename } from "@notesnook/common";
 import { format, LogLevel, logManager } from "@notesnook/core";
+import { strings } from "@notesnook/intl";
+import { LogMessage } from "@notesnook/logger";
+import { useThemeColors } from "@notesnook/theme";
+import Clipboard from "@react-native-clipboard/clipboard";
 import React, { useEffect, useRef, useState } from "react";
 import { FlatList, Platform, TouchableOpacity, View } from "react-native";
-import * as ScopedStorage from "react-native-scoped-storage";
 import RNFetchBlob from "react-native-blob-util";
-import Storage from "../../common/database/storage";
+import * as ScopedStorage from "react-native-scoped-storage";
+import filesystem from "../../common/filesystem";
 import { presentDialog } from "../../components/dialog/functions";
 import { IconButton } from "../../components/ui/icon-button";
 import { Notice } from "../../components/ui/notice";
 import Paragraph from "../../components/ui/typography/paragraph";
 import useTimer from "../../hooks/use-timer";
 import { ToastManager } from "../../services/event-manager";
-import { useThemeColors } from "@notesnook/theme";
 import { hexToRGBA } from "../../utils/colors";
-import { sanitizeFilename } from "@notesnook/common";
-import { strings } from "@notesnook/intl";
 
 export default function DebugLogs() {
   const { colors } = useThemeColors();
@@ -148,7 +148,7 @@ export default function DebugLogs() {
         if (!file) return;
         path = file.uri;
       } else {
-        path = await Storage.checkAndCreateDir("/");
+        path = await filesystem.checkAndCreateDir("/");
         await RNFetchBlob.fs.writeFile(path + fileName + ".txt", data, "utf8");
         path = path + fileName;
       }
diff --git a/apps/mobile/app/screens/settings/restore-backup/index.tsx b/apps/mobile/app/screens/settings/restore-backup/index.tsx
index d22b27625..494abf53e 100644
--- a/apps/mobile/app/screens/settings/restore-backup/index.tsx
+++ b/apps/mobile/app/screens/settings/restore-backup/index.tsx
@@ -28,7 +28,7 @@ import DocumentPicker from "react-native-document-picker";
 import * as ScopedStorage from "react-native-scoped-storage";
 import { unzip } from "react-native-zip-archive";
 import { DatabaseLogger, db } from "../../../common/database";
-import storage from "../../../common/database/storage";
+import filesystem from "../../../common/filesystem";
 import { deleteCacheFileByName } from "../../../common/filesystem/io";
 import { cacheDir, copyFileAsync } from "../../../common/filesystem/utils";
 import { presentDialog } from "../../../components/dialog/functions";
@@ -300,7 +300,7 @@ export const RestoreBackup = () => {
           return;
         }
       } else {
-        const path = await storage.checkAndCreateDir("/backups/");
+        const path = await filesystem.checkAndCreateDir("/backups/");
         files = await RNFetchBlob.fs.lstat(path);
       }
       files = files
diff --git a/apps/mobile/app/services/backup.ts b/apps/mobile/app/services/backup.ts
index c664d2611..033b37da6 100644
--- a/apps/mobile/app/services/backup.ts
+++ b/apps/mobile/app/services/backup.ts
@@ -19,6 +19,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import { sanitizeFilename } from "@notesnook/common";
 import { formatDate } from "@notesnook/core";
+import { strings } from "@notesnook/intl";
 import { Platform } from "react-native";
 import RNFetchBlob from "react-native-blob-util";
 import FileViewer from "react-native-file-viewer";
@@ -26,20 +27,14 @@ import * as ScopedStorage from "react-native-scoped-storage";
 import Share from "react-native-share";
 import { zip } from "react-native-zip-archive";
 import { DatabaseLogger, db } from "../common/database";
-import storage from "../common/database/storage";
-import filesystem from "../common/filesystem";
+import filesystem, { FileStorage } from "../common/filesystem";
 import { cacheDir, copyFileAsync } from "../common/filesystem/utils";
 import { presentDialog } from "../components/dialog/functions";
-import {
-  endProgress,
-  startProgress,
-  updateProgress
-} from "../components/dialogs/progress";
+import { endProgress, updateProgress } from "../components/dialogs/progress";
 import { eCloseSheet } from "../utils/events";
 import { sleep } from "../utils/time";
 import { ToastManager, eSendEvent, presentSheet } from "./event-manager";
 import SettingsService from "./settings";
-import { strings } from "@notesnook/intl";
 
 const MS_DAY = 86400000;
 const MS_WEEK = MS_DAY * 7;
@@ -178,7 +173,7 @@ async function run(
   let path;
 
   if (Platform.OS === "ios") {
-    path = await storage.checkAndCreateDir("/backups");
+    path = await filesystem.checkAndCreateDir("/backups");
   }
 
   const backupFileName = sanitizeFilename(
@@ -232,7 +227,7 @@ async function run(
         updateProgress({
           progress: `Saving attachments in backup... ${file.hash}`
         });
-        if (await filesystem.exists(file.hash)) {
+        if (await FileStorage.exists(file.hash)) {
           await RNFetchBlob.fs.cp(
             `${cacheDir}/${file.hash}`,
             `${attachmentsDir}/${file.hash}`
@@ -299,7 +294,7 @@ async function run(
       path: path
     };
   } catch (e) {
-    ToastManager.error(e, strings.backupFailed(), context || "global");
+    ToastManager.error(e as Error, strings.backupFailed(), context || "global");
 
     if (
       (e as Error)?.message?.includes("android.net.Uri") &&
diff --git a/apps/mobile/app/services/exporter.ts b/apps/mobile/app/services/exporter.ts
index 5938a485d..44d993b68 100644
--- a/apps/mobile/app/services/exporter.ts
+++ b/apps/mobile/app/services/exporter.ts
@@ -23,7 +23,6 @@ import RNHTMLtoPDF from "react-native-html-to-pdf-lite";
 import * as ScopedStorage from "react-native-scoped-storage";
 import { zip } from "react-native-zip-archive";
 import { DatabaseLogger } from "../common/database/index";
-import Storage from "../common/database/storage";
 
 import {
   exportNote as _exportNote,
@@ -31,13 +30,13 @@ import {
   ExportableNote,
   exportNotes
 } from "@notesnook/common";
-import { Note } from "@notesnook/core";
-import { FilteredSelector } from "@notesnook/core";
-import { basename, dirname, join, extname } from "pathe";
+import { FilteredSelector, Note } from "@notesnook/core";
+import { strings } from "@notesnook/intl";
+import { basename, dirname, extname, join } from "pathe";
+import filesystem from "../common/filesystem";
 import downloadAttachment from "../common/filesystem/download-attachment";
 import { cacheDir } from "../common/filesystem/utils";
 import { unlockVault } from "../utils/unlock-vault";
-import { strings } from "@notesnook/intl";
 
 const FolderNames: { [name: string]: string } = {
   txt: "Text",
@@ -49,7 +48,7 @@ const FolderNames: { [name: string]: string } = {
 async function getPath(type: string) {
   let path =
     Platform.OS === "ios" &&
-    (await Storage.checkAndCreateDir(`/exported/${type}/`));
+    (await filesystem.checkAndCreateDir(`/exported/${type}/`));
 
   if (Platform.OS === "android") {
     const file = await ScopedStorage.openDocumentTree(true);
diff --git a/apps/mobile/native/ios/Podfile.lock b/apps/mobile/native/ios/Podfile.lock
index a15f39990..069eee95e 100644
--- a/apps/mobile/native/ios/Podfile.lock
+++ b/apps/mobile/native/ios/Podfile.lock
@@ -1021,7 +1021,7 @@ PODS:
     - SDWebImage (~> 5.11.1)
   - react-native-share-extension (2.6.0):
     - React
-  - react-native-sodium (1.5.6):
+  - react-native-sodium (1.6.1):
     - React
   - react-native-theme-switch-animation (0.6.0):
     - DoubleConversion
@@ -1859,7 +1859,7 @@ SPEC CHECKSUMS:
   react-native-safe-area-context: b7daa1a8df36095a032dff095a1ea8963cb48371
   react-native-screenguard: 8b36a3df84c76cd2b82c477f71c26fa1c8cc14a0
   react-native-share-extension: 25437eb1039f7409be6e80a7edf8d02b42e1dc99
-  react-native-sodium: 605c1523ec8ff5fbff5e9e7769bbacceb571a3c6
+  react-native-sodium: 4cb76086943a7f60c42b40ebca866695b360a196
   react-native-theme-switch-animation: d3eb50365a3829ce5572628888fa514752703f61
   react-native-webview: 553abd09f58e340fdc7746c9e2ae096839e99911
   React-nativeconfig: ba9a2e54e2f0882cf7882698825052793ed4c851
diff --git a/apps/mobile/native/package.json b/apps/mobile/native/package.json
index 5df967f96..d07aab4db 100644
--- a/apps/mobile/native/package.json
+++ b/apps/mobile/native/package.json
@@ -65,7 +65,7 @@
     "react-native-screenguard": "^1.0.0",
     "@formatjs/intl-locale": "4.0.0",
     "@formatjs/intl-pluralrules": "5.2.14",
-    "@ammarahmed/react-native-sodium": "1.5.6",
+    "@ammarahmed/react-native-sodium": "^1.6.1",
     "react-native-mmkv-storage": "^0.10.2",
     "@react-native-community/datetimepicker": "^8.2.0",
     "react-native-exit-app": "github:ammarahm-ed/react-native-exit-app",
diff --git a/apps/mobile/package-lock.json b/apps/mobile/package-lock.json
index 48b9497be..fd543819b 100644
--- a/apps/mobile/package-lock.json
+++ b/apps/mobile/package-lock.json
@@ -17,6 +17,7 @@
         "@ammarahmed/react-native-share-extension": "^2.7.0",
         "@notesnook/common": "file:../../packages/common",
         "@notesnook/core": "file:../../packages/core",
+        "@notesnook/crypto": "file:../../packages/crypto",
         "@notesnook/editor": "file:../../packages/editor",
         "@notesnook/editor-mobile": "file:../../packages/editor-mobile",
         "@notesnook/intl": "file:../../packages/intl",
@@ -24352,7 +24353,6 @@
     "../../packages/sodium": {
       "name": "@notesnook/sodium",
       "version": "2.1.3",
-      "dev": true,
       "hasInstallScript": true,
       "license": "GPL-3.0-or-later",
       "dependencies": {
@@ -24971,12 +24971,10 @@
     },
     "../../packages/sodium/node_modules/libsodium-sumo": {
       "version": "0.7.15",
-      "dev": true,
       "license": "ISC"
     },
     "../../packages/sodium/node_modules/libsodium-wrappers-sumo": {
       "version": "0.7.15",
-      "dev": true,
       "license": "ISC",
       "dependencies": {
         "libsodium-sumo": "^0.7.15"
@@ -29080,9 +29078,9 @@
       }
     },
     "node_modules/@ammarahmed/react-native-sodium": {
-      "version": "1.5.6",
-      "resolved": "https://registry.npmjs.org/@ammarahmed/react-native-sodium/-/react-native-sodium-1.5.6.tgz",
-      "integrity": "sha512-DASF/A/cDViTMRnCxvoM35F0v/l/cD8bpecfI+oNOCUmySqWqR37h1L4tdFfEzwnJxLcm/SAyyDSxaa+qgw7BQ=="
+      "version": "1.6.1",
+      "resolved": "https://registry.npmjs.org/@ammarahmed/react-native-sodium/-/react-native-sodium-1.6.1.tgz",
+      "integrity": "sha512-3qSTIPCEYN8DChHqYuv94ekgtyLF6dinH13JZXdxsj6DHRcZxu9syPrFNb8osItPNx3ncME6UGhPFnSL2eDI8g=="
     },
     "node_modules/@ampproject/remapping": {
       "version": "2.2.1",
@@ -32854,6 +32852,10 @@
       "resolved": "../../packages/core",
       "link": true
     },
+    "node_modules/@notesnook/crypto": {
+      "resolved": "../../packages/crypto",
+      "link": true
+    },
     "node_modules/@notesnook/editor": {
       "resolved": "../../packages/editor",
       "link": true
diff --git a/apps/mobile/package.json b/apps/mobile/package.json
index 47bf83155..623f21927 100644
--- a/apps/mobile/package.json
+++ b/apps/mobile/package.json
@@ -43,6 +43,7 @@
     "@notesnook/logger": "file:../../packages/logger",
     "@notesnook/theme": "file:../../packages/theme",
     "@notesnook/themes-server": "file:../../servers/themes",
+    "@notesnook/crypto": "file:../../packages/crypto",
     "diffblazer": "^1.0.1",
     "react": "18.2.0",
     "react-native": "0.74.5",