Microsoft Authenticator - One app to quickly and securely verify your identity online, for all of your accounts.
Aegis Authenticator - Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens...
Myki Authenticator - Login to any account on any device with your fingerprint
Authy - Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.
Google Authenticator - Google Authenticator is a multifactor app for mobile devices.
DIGIPASS - DIGIPASS offers two-factor authentication solutions for mobile applications.