Duo Mobile works with Duo Security's two-factor authentication service to make logins more secure. The application generates passcodes for login and can receive push notifications for easy, one-tap authentication.
WinAuth is a portable, open-source Authenticator for Windows that can be used as a 2FA including Bitcoin / crypto-currency websites, any service that requires the Google Authenticator, and games such as World of Warcraft, Diablo III, Guild Wars 2, Rift, ArcheAge.
ente's Authenticator app helps you generate and store 2 step verification (2FA) tokens on your mobile devices.
A free open-source two factor authentication app for Android. It features encrypted backups, icons, categories and a high level of customisation. It also has a Wear OS companion app.
Open the app in one tap, sign in with FaceID and copy your one-time password to your Mac in one tap with handoff. Using a one-time password manager has never been easier!
Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens for your online services.
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*.
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.
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What about
Bitwarden Authenticator ?