Alternatives to Aegis Authenticator

An encrypted two-factor authentication app for Android with real backups and imports from every other authenticator. The listings below can replace it for an important use case. Each note says what changes if you switch.

Replacements

Listings that take over the same core job as Aegis Authenticator.

  • 2FAS

    Open-source authenticator app with browser-extension push approvals.

    FreeOpen sourceAndroidiOSBrowser extension

    2FAS is open source, adds iOS support and browser-extension push approvals, and backs up encrypted to your own iCloud or Google Drive account.

  • Ente Auth

    Open-source two-factor authenticator with end-to-end encrypted backups.

    FreeOpen sourceWindowsmacOSLinuxAndroidiOSWeb

    Ente Auth runs on iOS, desktop and the web as well as Android, with end-to-end encrypted cloud backup, but backup relies on an Ente account.

  • FreeOTP

    An open-source two-factor authentication app for Android and iOS that generates one-time codes.

    FreeOpen sourceAndroidiOS

    FreeOTP is also open source and available on F-Droid, adds an iOS app, but its project website is minimal with little documentation.

  • Google Authenticator

    Google's mobile app that generates one-time verification codes for two-step verification.

    FreeProprietaryAndroidiOS

    Google Authenticator adds iOS and optional sync through a Google Account instead of backups you control, and it is closed source.

  • Proton Authenticator

    A free two-factor authentication app from Proton with end-to-end encrypted sync between your devices and no advertising.

    FreeOpen sourceWindowsLinuxAndroid

    Proton Authenticator adds end-to-end encrypted sync to Windows and Linux under the GPL, but sync requires a Proton account and it has fewer import paths.

  • Authy

    Mobile two-factor authenticator with encrypted cloud backup.

    FreeProprietaryAndroidiOS

    Authy offers encrypted backup and multi-device sync on Android and iOS, but it is closed source and account recovery is tied to a phone number.

  • Microsoft Authenticator

    Microsoft's mobile authenticator app for multi-factor and passwordless sign-in to personal and work accounts.

    FreeProprietaryAndroidiOS

    Microsoft Authenticator adds passwordless sign-in for Microsoft personal and work accounts, but it is closed source, mobile only and most useful inside the Microsoft ecosystem.

  • Bitwarden Authenticator

    A standalone mobile app from Bitwarden that generates and stores two-step verification codes.

    FreeProprietaryAndroidiOS

    Bitwarden Authenticator is a free standalone mobile app from a password manager vendor, but it is not open source and few import or backup details are published.

Also worth comparing

These listings name Aegis Authenticator as their own alternative, so the relationship runs both ways.

  • Authenticator

    A GNOME desktop app that generates two-factor authentication codes using the TOTP and HOTP standards.

    FreeOpen sourceLinux

    Aegis Authenticator moves codes to an Android phone with an encrypted vault, automatic backups you control and imports from many other authenticator apps.

  • Duo Mobile

    Enterprise multi-factor authentication app with push approvals.

    FreeProprietaryAndroidiOS

    Aegis is open source with an encrypted vault, automatic backups you control and broad imports, but it runs only on Android with no cloud sync.

  • OTPClient

    A GTK4 desktop app for managing TOTP and HOTP two-factor codes in encrypted databases.

    FreeOpen sourceLinuxCommand line

    Aegis Authenticator moves codes to an Android phone with an AES-256-GCM encrypted vault, automatic backups and imports from many other authenticators.

  • Stratum

    A free and open-source two-factor authentication app for Android with encrypted backups and Wear OS support.

    FreeOpen sourceAndroid

    Aegis Authenticator is also an open-source Android app with an encrypted vault, automatic backups and many imports, but lacks the Wear OS companion and mOTP support.

  • Yubico Authenticator

    An app that shows two-factor codes from OATH credentials stored on a YubiKey.

    FreeProprietaryWindowsmacOSLinuxAndroidiOS

    Aegis Authenticator stores codes in an encrypted open-source vault on Android with automatic backups, instead of on a hardware key, but runs only on Android.

Similar software

Related functionality, not a direct replacement.