Arcanum

byPsychopath · Security & Privacy

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AI summary

VeraCrypt-compatible encrypted vault manager with full container support, hidden volumes for plausible deniability, and biometric unlock. Browse photos, videos, audio, and files inside encrypted containers without decrypting to disk. New in 1.6: gallery folder filtering, Markdown notes, in-app PDF viewer, syntax-highlighted text editor, and vaults on USB drives.

Generated by AI. May contain inaccuracies.

About this app

VeraCrypt-compatible encrypted vault manager for Android.

Features

Cryptography

- Full VeraCrypt container compatibility — open containers created on desktop - 15 cipher configurations: AES, Serpent, Twofish, Camellia, Kuznyechik, and cascade combinations - 5 PRF algorithms: SHA-512, SHA-256, Whirlpool, Streebog, BLAKE2s-256 - Keyfile support with pool-based derivation matching VeraCrypt's implementation - PIM (Personal Iterations Multiplier) support - FAT32, exFAT, or ext4 inside the container

Volume management

- Back up and restore the volume header - Change password, PIM, and keyfiles of an existing volume - Read-only mount - Hidden-volume protection while writing to the outer volume - Move a vault between app storage and external storage - Storage usage breakdown per vault - Vaults on USB flash drives over OTG

Privacy

- Hidden volumes for plausible deniability - Calculator disguise — optional second launcher entry that opens a working calculator - Panic PIN — triggers a configurable wipe - Screenshots and screen recording blocked at OS level - Auto-lock with configurable delay - PIN lockout timed against a monotonic clock - No network permission — INTERNET is never declared

Vault access

- Biometric unlock per vault (hardware-backed, CryptoObject-bound) - Biometric unlock for the app itself - Per-vault auto-unmount on screen lock or background

In-vault browsing

- Encrypted gallery with image and video viewer - Photo editor — crop, filters, adjustments, markup - Audio player with waveform and background playback - Full file manager — create, rename, delete, copy, move, import, export - Open a vault file in another app without decrypting it to storage - Send files into a vault from the Android share sheet

Interface

- AMOLED Glass theme — frosted-glass system bars and dialogs on pure black - Dynamic Color (Material You) support - 14 languages, switchable inside the app - Edge-to-edge, Android 10+

Disclaimer

Arcanum is an independent, open-source project. Not affiliated with, endorsed by, or connected to VeraCrypt, TrueCrypt, or any third-party services. All trademarks belong to their respective owners.

License

Apache 2.0

encryption privacy open source file manager offline veracrypt

What's new

v1.6Sep 10, 2026

Gallery & Files
Gallery search now matches folder names. - Filter the gallery to specific folders. - Sort by name, date, size, type, or random. - Pinch to zoom videos. - GIFs and animated WebP now play and loop. - HEIC photos now show thumbnails and open correctly. - The editor now handles large photos without crashing.
Vaults & Security
Back up settings to a file and restore on another phone. - Vaults that have lost their file can be pointed at it again. - "Keep vaults open in the background" option in Security. - Hidden volumes can be exFAT or ext4. - Hidden volumes and vaults can be placed on USB drives. - Argon2id key derivation support. - Vaults grouped by location; tap to open. - Returning after Android shuts down now asks for the PIN. - Playback info stays inside the app.
New Features
Markdown notes with edit and read modes. - Text files open in the app with line numbers and syntax colouring. - PDFs open inside the app without decrypting to disk. - Create links to files and folders in ext4 vaults. - Copy and Move ask where to in one step. - Importing over an existing file asks first. - Vaults on USB drives can be renamed.
Improvements & Fixes
Notifications queue instead of replacing each other. - Imported files keep their own date. - Swiping follows the order you chose. - Auto-lock no longer interrupts long operations. - Choosing a file no longer locks the app. - The calculator works in landscape.