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Arcanum

Encrypted container manager compatible with VeraCrypt
New in version 1.6
- New: Settings can be carried to another phone
- New: A vault can stay open in the background
- New: Text files open in the app
- New: PDFs open inside the app
- New: A hidden volume can go on a USB drive
- New: Argon2id, a derivation that costs memory
- New: Vaults on USB flash drives
- Security: What is in a vault no longer reaches the system log
- Fix: Renaming a vault could lose it
- Improvement: ext4 vaults are much faster to fill
Arcanum is an encrypted container manager for Android that creates and mounts VeraCrypt-compatible volumes. Your files are protected with military-grade encryption and remain accessible only to you.

Key Features

• VeraCrypt-compatible — containers work on desktop too (Windows, macOS, Linux)
• AES-256, Twofish, Serpent and cascade ciphers
• Multiple hash algorithms: SHA-512, SHA-256, Whirlpool, Streebog, BLAKE2s-256
• Hidden volumes for plausible deniability
• Keyfile support
• Biometric unlock (fingerprint / face)

Privacy & Security

• Disguise mode — app appears as a plain calculator on the home screen
• Panic PIN — instantly wipes sensitive data and resets the app
• Auto-lock when the app goes to the background
• PIN protected with Argon2id key derivation
• No network access, no analytics, no telemetry
• All data stays on your device

Open Source

Arcanum is fully open source. The cryptographic implementation is based on the VeraCrypt codebase. You can review, audit, and build the app yourself.

This is the F-Droid build: all features are included, no payments required.
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Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 1.6 (10) suggested Added on Sep 14, 2026

    arm64-v8a armeabi-v7a

    This version requires Android 10 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • read locations from your media collection
      Allows the app to read locations from your media collection.
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • run foreground service with the type "mediaPlayback"
      Allows the app to make use of foreground services with the type "mediaPlayback"
    • run foreground service with the type "specialUse"
      Allows the app to make use of foreground services with the type "specialUse"
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • zip.arcanum.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 34 MiB PGP Signature | Build Log

    • New in version 1.5.0
    - New: Create vaults as ext4
    - New: Generate keyfiles in the app
    - New: Donations
    - New: Fullscreen video
    - Security: Hardened biometric app unlock
    - Security: Keyfiles never touch storage any more
    - Fix: Open FAT32 vaults created by other apps
    - Fix: No crash playing media on 32-bit devices
    - Fix: Moving a file or folder to where it already is no longer deletes it
    - Fix: New vaults hold far more files at the top level
    - Fix: Runs on devices with 16 KB memory pages
  • Version 1.5.0 (9) - Added on Aug 10, 2026

    arm64-v8a armeabi-v7a

    This version requires Android 10 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • run foreground service with the type "mediaPlayback"
      Allows the app to make use of foreground services with the type "mediaPlayback"
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • zip.arcanum.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 33 MiB PGP Signature | Build Log

    • New in version 1.4.1
    - Fix: Calculator disguise shows at launch
    - Fix: Calculator disguise respects 3-button navigation
    - Fix: Gallery videos play on first open
    - Fix: Large videos open instantly
    - Improvement: Refined video player controls
    - Improvement: One media viewer everywhere
    - Improvement: Screen stays on during video playback
    - Fix: No auto-lock while media is playing
    - Improvement: Shareable crash reports
    - Fix: No stale mounted state after a background kill
  • Version 1.4.1 (8) - Added on Jul 20, 2026

    arm64-v8a armeabi-v7a

    This version requires Android 10 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • run foreground service with the type "mediaPlayback"
      Allows the app to make use of foreground services with the type "mediaPlayback"
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • zip.arcanum.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 30 MiB PGP Signature | Build Log

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