Arcanum

Verified safeOpen sourceExclusive
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17
downloads
10
android

AI summary

Arcanum creates and mounts VeraCrypt-compatible encrypted containers on Android, supporting AES-256, Twofish, Serpent, hidden volumes, biometric unlock, and a calculator disguise mode. No network access, analytics, or telemetry. v1.4.1 brings a unified media viewer, video playback fixes, and shareable crash reports.

Generated by AI. May contain inaccuracies.

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About this app

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.

What's new

v1.4.1Jul 17, 2026
  • Improvements
  • Refined video player controls — Tapping on or near the seek bar no longer hides the player controls by accident, and scrubbing now keeps them on screen and restarts the auto-hide timer. The seek bar itself is slimmer, with a cleaner handle centered on the track. One media viewer everywhere — Photos and videos opened from the file browser now use the same full viewer as the Gallery, so you get swipe between items in the folder, EXIF and date editing, rename, delete, export, and the photo editor in both places. Screen stays on during video playback — The screen no longer dims or turns off while a video is playing, so long videos aren't interrupted by the display timeout. It goes back to the normal timeout as soon as you pause or leave the video. (#105) Shareable crash reports — If the app ever crashes, including a native crash that previously left nothing behind, a report is now saved and shown in the debug section so you can copy it and send it along - which makes hard-to-reproduce crashes much easier to track down.
  • Fixes
  • Calculator disguise shows at launch — With the calculator disguise enabled, a cold start sometimes showed the PIN screen instead of the calculator. The lock screen now waits for the disguise setting to load before choosing, so the calculator always appears on launch. (#97) Calculator disguise respects 3-button navigation — The bottom row of the disguise calculator could hide behind the navigation bar under 3-button navigation. The buttons now stay clear of the navigation bar in every mode. (#98) Gallery videos play on first open — A video opened from the Gallery could show a black screen and only start playing after swiping to another item and back. Videos now begin playing immediately on first open. (#100) Large videos open instantly — Opening a big video from the gallery no longer stalls. The player kept re-reading the file from the start on every chunk, so long videos could take a very long time to begin; it now keeps the file open and seeks directly, so they start right away. (#96) Clear message for unplayable videos — A video the built-in player can't decode now shows a short message instead of an endless black screen. Play videos with broken frame-rate metadata — Some videos declare a nonsensical frame rate that made the built-in player reject them with a black screen, even though they play elsewhere. The player now ignores an implausible declared rate, so these videos play normally. (#104) Video progress bar updates from the start — When opening a video the seek bar stayed at 0:00 and only started moving after tapping it, which also jumped playback back to the beginning. The progress bar and time now advance on their own from the moment the video starts. No auto-lock while media is playing — With auto-lock enabled, watching a video or listening to audio counted as idle time, so the vault could lock in the middle of playback. Active playback now keeps the vault unlocked while it plays, and the idle timer resumes the moment you pause. Backgrounding still ages the vault out as before. No stale mounted state after a background kill — If Android closed the app in the background to free memory, a vault could still show as mounted while its files were gone. The app now rechecks on every start, so the vault correctly shows as unmounted and can be remounted with one tap. (#101)

About this version

Version
1.4.1 (8)
Size
30.34 MB
Requires Android
10
Target SDK
29
Architecture
arm64-v8a, armeabi-v7a
Downloads
17
Updated
Jul 17, 2026
Package
zip.arcanum

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