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2FA Authenticator (2FAS) Alternatives

2FA Authenticator (2FAS) is described as '2FAS Authenticator is a simple and free application for Two Factor Authentication (2FA Authentication) which generates Time-based One-time Passwords (TOTP) and PUSH authentication'* and is a authenticator app. There are more than 25 alternatives to 2FA Authenticator (2FAS) for a variety of platforms, including Android, iPhone, Android Tablet, iPad and Linux. The best alternative is Authy, which is free. Other great apps like 2FA Authenticator (2FAS) are Aegis Authenticator, andOTP, FreeOTP and Google Authenticator.

2FA Authenticator (2FAS) alternatives are mainly Authenticator Apps but may also be Password Managers or Cloud Computing Services. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of 2FA Authenticator (2FAS).
This page was last updated Feb 5, 2022
  • FreeProprietary
  • Android
  • iPhone
  • Android Tablet
  • iPad

2FAS Authenticator is a simple and free application for Two Factor Authentication (2FA Authentication) which generates...

Learn more about 2FA Authenticator (2FAS)

  1. Authy is a simple way to manage two-factor authentication accounts. Authy supports Gmail, Dropbox, LastPass and thousands of other sites.

  2. Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens for your online services.



  3. It implements Time-based One-time Passwords (TOTP) and HMAC-Based One-Time Passwords (HOTP). Simply scan the QR code and login with the generated 6-digit code.

  4. FreeOTP

    • FreeOpen Source
    • Android
    • iPhone
    • Android Tablet
    • iPad

    FreeOTP is a two-factor authentication application for systems utilizing one-time password protocols with support for Android (3.0 or later) and iOS (7 or later). Tokens can be added easily by scanning a QR-code or by manually entering in the token configuration.

    FreeOTP vs 2FA Authenticator (2FAS) opinions
    pros, cons and recent comments

    Needed a FOSS alternative to the Google Authenticator app to access my company's corporate G-suite instance. This is a simple app and works like a charm!

    Positive comment almost 2 years ago
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  5. Google Authenticator generates 2-step verification codes on your phone.



  6. Sign in is easy, convenient, and secure when you use Microsoft Authenticator. Use your phone, not your password, to log into your Microsoft account. You simply have to enter your username, then approve the notification sent to your phone.

  7. YubiKey

    • Windows
    • Linux
    • Android
    • Android Tablet

    The YubiKey is a one-time password device for secure login with two-factor authentication

  8. FreeOTP+ is a fork of FreeOTP with an updated user interface and with backup/restore functionality (to external files or via built-in Android backup/restore).

  9. LastPass Authenticator is a two-factor authentication app for your LastPass account and other supported apps. LastPass Authenticator offers simple, secure authentication to your accounts by generating passcodes for login or receiving push notifications for one-tap approval.

  10. Nitrokey is an USB key to enable highly secure encryption and signing of emails and data, as well as login to the Web, networks and computers. Other than ordinary software solutions, the secret keys are always stored securely inside the Nitrokey.

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Showing 10 of 47 alternatives