A TOTP (Time-Based One-Time Password) authenticator is a security tool used for two-factor authentication (2FA). It generates a temporary, 6-digit code that changes every 30 seconds. If your site has 2FA enabled and passcode delivery method set to "Authenticator", you will need to use a TOTP authenticator app. Here are some examples*:
- Google Authenticator: Basic mobile app supporting iOS and Android with cloud synchronization linked to a personal Google account. iOS | Android
- Microsoft Authenticator: Mobile app for iOS and Android designed for Microsoft account integration alongside standard TOTP codes. iOS | Android
- 2FAS: Open-source mobile app for iOS and Android featuring optional encrypted cloud backups and local seed storage. iOS | Android
- Ente Auth: Open-source, cross-platform mobile and desktop app featuring end-to-end encrypted cloud syncing. iOS | Android
- Twilio Authy: Multi-device app supporting iOS, Android, and desktop with synced backups (though restricted on data export). iOS | Android
- FreeOTP: Open-source, highly configurable token generator for Android and iOS supporting advanced parameters. iOS | Android
*NOTE: The list of authenticator apps is provided for informational purposes only and does not constitute an endorsement or recommendation. We encourage you to review each option independently to determine which app best meets your security and compatibility needs.
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