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 https://github.com/nemoXdev/CryptoSafe/issues, or contribute a translation at https://github.com/nemoXdev/CryptoSafe/blob/develop/app/src/main/assets/locales/README.md. With your contribution, the app keeps getting better.