Google Authenticator generates a 2-step verification code on your mobile.
The 2-step verification process increases the security of your Google Account by requesting a second authentication step to sign in. In addition to the password, the code generated by the Google Authenticator application on your mobile device is also required.
Details of the 2-step verification process: https://g.co/2step
features:
* Generate a confirmation code without a data connection
* Google Authenticator works with many providers and accounts
* Android Wear Support
* Dark theme available
* Automatic settings with QR codes
Authorization notification:
Camera: Your account must be added with a QR code