About Kryptos
Kryptos is a keyboard and overlay tool for encrypting and decrypting messages within compatible messaging apps. Users type a message with the Kryptos keyboard and replace it with ciphertext before sending. Incoming encrypted text can be decrypted in an overlay while viewing the conversation, avoiding the need to copy text into a separate app. It also supports password-based encryption and PGP. The app describes a Signal Protocol-based mode with a new key for each message and safety codes for verifying contacts. It includes steganography options for hiding encrypted text in an image or disguising it as ordinary-looking words. Keys are generated on the device and stored in Android’s secure keystore; the app claims no network code and supports biometric or password access. A panic-wipe password, disappearing-message timers, screenshot blocking, and encrypted key export are also available. Kryptos requires keyboard and overlay permissions for its in-chat workflow, and QR scanning may require camera access. Encrypted messaging only works when participants use compatible keys and settings. The supplied description does not establish that every messenger or recipient supports all formats, so users should test communication with intended contacts before relying on it for sensitive information.
Categories
Platforms
Website & Downloads
Trusted package or store listing
Related software
- 1Key Password Manager — 1Key Password Manager is an Android app for storing passwords and other sensitive account details in an encrypted vault kept on the device.
- 5G Proxy Client — 5G Proxy Client routes Android device traffic through a remote SOCKS5 server using a TUN interface, without root access.
- 5G Proxy Pro — 5G Proxy Pro turns an Android phone’s cellular connection into a SOCKS5 proxy that other devices can use over Wi-Fi, hotspot, or USB tethering.
- AIPOS Password Manager — AIPOS Password Manager stores passwords, usernames, URLs, API keys, and two-factor authentication secrets in a local vault.
- ANOTHERpass — ANOTHERpass is an Android password manager and one-time-code authenticator.
- Aegis Authenticator — Aegis Authenticator stores and generates two-step verification codes using HOTP and TOTP, two widely supported algorithms.
