Stratum is an open-source two-factor authentication app designed for Android devices, offering enhanced security for user accounts. It supports TOTP and HOTP protocols, utilizing SHA1, SHA256, or SHA512 hashing algorithms, making it versatile for various authentication needs. Users can also manage mobile-OTP, Steam, and Yandex accounts seamlessly within the app. Stratum ensures a secure experience by requiring a one-time code alongside traditional login credentials, effectively safeguarding accounts against unauthorized access.

The application boasts a user-friendly interface with features such as encrypted backups, customizable icons, and category organization for easy access to authenticator codes. Stratum operates offline, requiring minimal permissions, and includes a Wear OS companion app for convenience. Additional features like dark mode, biometric security options, and the ability to import accounts from other authenticator apps enhance its functionality, making it a reliable choice for anyone seeking to improve their online security.