CryptoSafe 2.1.1
Offline AES-256-GCM text encryption with Argon2id, no internet permission
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About CryptoSafe
CryptoSafe is a fully offline app for encrypting and decrypting text. It doesn't use the internet at all, and everything stays on your phone.
Features:
• Anonymous Boxes: chat in password-protected boxes, each with its own password
• Strong encryption: AES-256-GCM with Argon2id key derivation
• App Lock: PIN and fingerprint unlock with an auto-lock timer
• Encrypted database (SQLCipher): nothing is stored in plaintext
• Share into a box: receive encrypted texts from WhatsApp, Telegram and other apps directly into a box
• Share from a box: share encrypted texts from a message box with other apps
• Auto-delete messages (from 1 hour to 90 days)
• Box lock modes: ask every time, remember for a while, keep for the session, or remember permanently
• Built-in password generator with strength indicator
• Screenshot protection on every screen
• Help & Guide screen with detailed documentation
• Translated into 15 languages
Help us improve: report issues or suggest features at [link removed], or contribute a translation at [link removed]. With your contribution, the app keeps getting better.
License: MIT
Features:
• Anonymous Boxes: chat in password-protected boxes, each with its own password
• Strong encryption: AES-256-GCM with Argon2id key derivation
• App Lock: PIN and fingerprint unlock with an auto-lock timer
• Encrypted database (SQLCipher): nothing is stored in plaintext
• Share into a box: receive encrypted texts from WhatsApp, Telegram and other apps directly into a box
• Share from a box: share encrypted texts from a message box with other apps
• Auto-delete messages (from 1 hour to 90 days)
• Box lock modes: ask every time, remember for a while, keep for the session, or remember permanently
• Built-in password generator with strength indicator
• Screenshot protection on every screen
• Help & Guide screen with detailed documentation
• Translated into 15 languages
Help us improve: report issues or suggest features at [link removed], or contribute a translation at [link removed]. With your contribution, the app keeps getting better.
License: MIT
| Release info | New Release on Aug 13, 2026 |
|---|---|
| Release notes | • Encrypted Boxes (Chat) with per-box passwords • App Lock with PIN and Biometric unlock • Encrypted database (SQLCipher) • Receive encrypted texts from other apps • Share encrypted texts from a message box with other apps • Auto-delete messages (1h to 90 days) • Settings screen • Help & Guide screen with detailed documentation |
| Listing data | F-Droid |
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