Google Authenticator - Google Authenticator is a multifactor app for mobile devices.
Authy - Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.
Microsoft Authenticator - One app to quickly and securely verify your identity online, for all of your accounts.
LastPass Authenticator - LastPass is an online password manager and form filler that makes web browsing easier and more secure.
Aegis Authenticator - Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens...
Authenticator Hub - How to enable 2 step verification for your accounts? Check our step-by-step guides to easily activate 2FA in all your accounts.