Stratum

Stratum

Open-source Android authenticator from France that creates 2FA codes, backs them up encrypted and has a Wear OS companion.

FranceOpen Source

About Stratum

Stratum is an open-source authenticator app for Android from France. It generates one-time codes for two-factor login and keeps the secrets locally on the device instead of storing them with a cloud service. Backups can be encrypted, so accounts can be restored when changing phones. A companion for Wear OS displays the codes directly on a smartwatch. The app costs nothing and addresses people looking for a replacement for Authy or Google Authenticator.

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