About
Stratum is an open-source two-factor authentication app for Android that generates one-time codes to secure your accounts. It supports TOTP and HOTP authenticators with SHA1, SHA256, or SHA512 hashing, plus Mobile-OTP, Steam, and Yandex. The app encrypts backups locally or to cloud storage, organizes codes into categories with brand icons, and requires only camera permission to function offline. Password and biometric protection lock your codes, and a Wear OS companion app lets you view authenticators directly from your watch. You can import accounts from other authenticator apps and customize the order and appearance of each entry.
Highlights
- TOTP and HOTP support with SHA1, SHA256, or SHA512 hashing algorithms
- Encrypted backups saved locally or to cloud storage
- Wear OS companion app with favorite tile placement
- Organize authenticators into categories with brand icons
- Password and biometric protection with minimal permissions
- Import accounts from other authenticator apps
Best for
Android users securing multiple accounts with two-factor authentication who want encrypted backups, offline functionality, and the ability to view codes on their smartwatch without requiring extensive app permissions.
At a glance
Stratum - Authenticator App is available on Android — all free to download.
It is developed by jmh.me.
