CryptoSafe

CryptoSafe

Offline AES-256-GCM text encryption with Argon2id

nemoXdev Security

Screenshots

Screenshot of CryptoSafe Screenshot of CryptoSafe Screenshot of CryptoSafe

Description

CryptoSafe is a lightweight, offline-first Android app for military-grade text encryption. Your data never leaves your device.

Features:
• Strong Encryption: AES-256-GCM with Argon2id key derivation (128 MiB, 4 iterations)
• 100% Offline: No internet permission needed. Your data never leaves your device
• Screenshot Blocked: FLAG_SECURE prevents accidental leaks
• Zero Storage: No logs, no cache, no database
• Modern UI: Material 3 design with dark theme and smooth animations
• Copy & Clear: One-tap copy and quick clear of sensitive fields

Perfect for journalists, activists, and anyone who needs to encrypt sensitive text messages without relying on cloud services or internet connectivity.

What’s new (1.3.0)

• Add random password generator.
• Fix app crash with long passwords.
• General improvements.

Versions

Version Date Size Requires Android Download
1.3.0 current
c9b9980a1b62a652…
2026-07-20 2.4 MB API 24
1.2.2
b39fb7806e578ea4…
2026-07-10 2.4 MB API 24
1.2.1
c54a8aeef14f9da5…
2026-07-01 2.4 MB API 24

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Comments