AlternativeTo Logo

Open Authenticator Alternatives

Open Authenticator is described as 'A trusted open-source Authenticator. Formerly known as SmartWatch2 Authenticator free' and is a authenticator app in the security & privacy category. There are more than 25 alternatives to Open Authenticator for a variety of platforms, including Android, iPhone, iPad, Android Tablet and Mac. The best alternative is Authy, which is free. Other great apps like Open Authenticator are Aegis Authenticator, andOTP, FreeOTP and Google Authenticator.

Open Authenticator alternatives are mainly Authenticator Apps but may also be Password Managers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Open Authenticator.
This page was last updated May 23, 2022
  • FreeOpen Source
  • Android

A trusted open-source Authenticator. Formerly known as SmartWatch2 Authenticator free.

Learn more about Open Authenticator

  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.

    Aegis Authenticator vs Open Authenticator opinions
    pros, cons and recent comments

    Its the only authenticator with biometric lock. Typing passwords on a phone is a pain in the a**

    Positive comment almost 2 years ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.


  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.

  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. 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).

  8. 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.

  9. The app for calculating one-time-passwords on iPhone and iPad. OTP Auth can be used with any service that uses one time passwords. This includes services like Dropbox and GMail with two-step-verfification enabled. OTP Auth is QR code enabled.

  10. Authenticator generates two-factor authentication (2FA) codes in your browser. Use it to add an extra layer of security to your online accounts.

Showing 10 of 39 alternatives