Aegis Authenticator - Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens...
DIGIPASS - DIGIPASS offers two-factor authentication solutions for mobile applications.
Authy - Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.
Myki Authenticator - Login to any account on any device with your fingerprint
OTP Auth - The app for calculating one-time-passwords on iPhone and iPad.
Rublon - Rublon enables your workforce to securely access your organization's networks, servers and applications via easy-to-use multi-factor authentication. Protect cloud apps, VPNs, servers, workstations, internal as well as on-premise apps.