Authenticator is a free Two-Factor Authentication (2FA) app that generates Time-based One-time token password (TOTP). It ensures the online security of your accounts on TOTP supported websites. With Authenticator, you can add an extra layer of security to your online accounts through generated codes that are one-time tokens. This app helps protect your account by requiring a second step of verification when you sign in. In addition to your password, you will need a code generated by the Authenticator app on your phone.

You can either use the QR code or enter your secret key manually in the Authenticator app to set up your account authentication. Once you scan the QR code, your account will be protected. Authenticator provides 30 and 60 seconds tokens, TOTP, and PUSH Authentication, password protection, screenshot security, strong password generator, QR code scanner for Accounts, and information on how to use the app.