Aegis Authenticator is a free, open source Android app for managing two-factor authentication tokens.
The tool addresses the need for a secure, feature-rich authenticator by encrypting the vault containing all stored tokens with AES-256-GCM and allowing unlock via password with scrypt key derivation or biometric authentication through the Android Keystore. It supports both HOTP and TOTP algorithms, making it compatible with thousands of online services. The app includes practical features like screen capture prevention, tap-to-reveal functionality, and the ability to import tokens from numerous other authenticator apps including Google Authenticator, Authy, Microsoft Authenticator, and FreeOTP.
Anyone considering adoption should know the tool is designed for users who want stronger encryption and backup capabilities than typical authenticator apps provide. It suits anyone managing two-factor authentication across multiple services who values security and wants the flexibility to export or back up their tokens. The app offers extensive organization options including alphabetic or custom sorting, custom icons, and grouping of entries, along with search functionality. Material Design theming with light, dark, and AMOLED options accommodates different user preferences.
The project maintains active development with regular updates addressing both security and usability. The codebase receives ongoing refinement and the maintainers document the security design of the vault format in detail for transparency. The tool is distributed through both Google Play Store and F-Droid, ensuring accessibility across different Android installation preferences.
