Google Authenticator generates 2-Step Verification codes on your phone.




SecKey is described as 'Provides one time passwords to be used with the two factor authentication of Dropbox, Google, Facebook, GitHub, Proton Mail and many more' and is an app in the security & privacy category. There are more than 10 alternatives to SecKey for a variety of platforms, including iPhone, Android, iPad, Android Tablet and Web-based apps. The best SecKey alternative is Google Authenticator, which is free. Other great apps like SecKey are FreeOTP, Authenticator Extension, Keysmith and Team SMS.
Google Authenticator generates 2-Step Verification codes on your phone.




FreeOTP is a two-factor authentication application for systems utilizing one-time password protocols with support for Android (6 or later) and iOS (11 or later). Tokens can be added easily by scanning a QR-code or by manually entering in the token configuration.




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



Keysmith is a token generator for your two-factor authentication (2FA) logins. It supports time and hash-based one-time passwords (TOTP/HOTP).

Effortlessly share 2FA SMS with your team. This number works with all services, from WhatsApp to ChatGPT, and connects to numerous tools through Zapier or our webhook integration.



LastPass Authenticator offers a unique one-tap password verification experience that no other authenticator app delivers.




Secure your Zoho Account with easy-to-use, multi-factor authentication. Because hackers won't give you a second chance.




Daito is a web-based 2FA authenticator for TOTP tokens. It enables you to share 2FA tokens with others to simply protecting shared accounts. No phone needed.

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.




Authenticator is a simple, free, and open source two-factor authentication app. It helps keep your online accounts secure by generating unique one-time passwords, which you use in combination with your other passwords to log into supporting websites.







A simple application for multi-factor authentication, written in HTML using jQuery Mobile, jsSHA, LocalStorage and Application Cache. It implements the TOTP (Time-Based One-Time Password) algorithm according to RFC6238 and has been tested to work with Google Authenticator...