Google Authenticator Features

Offers software tokens, which are applications installed on a mobile phone, wearable devices, or desktops and generate time-based one-time passcodes (TOTP) that a user can easily copy. Software tokens work both online and offline.

Offers mobile push authentication, which is a user-friendly method that does not require a user to copy a code, but rather accept or deny an authentication using a mobile application. Mobile push authentication only works when a user is connected to the internet.

Analyzes users' IP addresses, devices, behaviors and identities to authenticate a user.

Allows the use of tokens on multiple devices. This feature can also be turned off if the user does not want this.

Offers an easy to understand user interface to make setup smooth.