Authenticator
Authenticator is a simple, free, and open source two-factor authentication app.
Some of the top features or benefits of Authenticator are: Open Source, Privacy-Focused, Simple User Interface, Local Storage, and Cross-Platform Support. You can visit the info page to learn more.
- Open Source
Best Authenticator Alternatives & Competitors in 2025
The best Authenticator alternatives based on verified products, community votes, reviews and other factors.
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Open-Source Alternatives.
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/aegis-authenticator-alternativesAegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens...
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/google-authenticator-alternativesGoogle Authenticator is a multifactor app for mobile devices.
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Try for freeVerify your customers in under 15 seconds anywhere in the world with a cutting-edge SaaS & API platform for Identity Verification and AML/KYC compliance.
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/microsoft-authenticator-alternativesOne app to quickly and securely verify your identity online, for all of your accounts.
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/open-authenticator-alternativesA trusted open-source Authenticator. Formerly known as SmartWatch2 Authenticator free.
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/otp-auth-alternativesThe app for calculating one-time-passwords on iPhone and iPad.
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/andotp-alternativesandOTP is a two-factor authentication App for Android 4.4+
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/authenticator-hub-alternativesHow to enable 2 step verification for your accounts? Check our step-by-step guides to easily activate 2FA in all your accounts.
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/authenticator-plus-alternativesAuthenticator Plus generates 2-step verification codes and lets you synchronize your accounts.
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/tofu-authenticator-alternativesTofu Authenticator is an open-source easy to use two-factor authentication app that lets you secure your accounts with one-time passwords.
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/totp-authenticator-alternativesTOTP Authenticator app makes it easier to setup and manage your 2-factor authentication accounts and tokens. The app allows you to add extra security to your accounts and protects them from hijacking. Available for iOS and Android.
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/raivo-otp-alternativesRaivo OTP is an open-source two-factor authentication app that lets you create a one-time password for your online accounts.
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/lastpass-authenticator-alternativesLastPass is an online password manager and form filler that makes web browsing easier and more secure.
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/authy-alternativesBest rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.
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