Authenticator is a simple and free application for Two Factor Authentication (2FA Authentication) which generates Time-based One-time Passwords (TOTP) and PUSH authentication. 2-Step Verification provides stronger security for your Online Account by requiring a second step of verification when you sign in. 2FA Authenticator app protects your services and accounts. The generated codes are one time tokens that provide an extra layer of security to your online accounts. After scanning a simple QR