TOTP Authenticator is described as 'Makes it simple and easy to enable 2-factor authentication on your accounts. The app provides option to backup data offline or on the cloud. Features like Push to Chrome, dark theme, custom icons and widgets make the app stand out' and is a Authenticator in the security & privacy category. There are more than 50 alternatives to TOTP Authenticator for a variety of platforms, including Android, iPhone, iPad, Android Tablet and Windows apps. The best TOTP Authenticator alternative is Bitwarden, which is both free and Open Source. Other great apps like TOTP Authenticator are Aegis Authenticator, Proton Authenticator, Ente Auth and Bitwarden Authenticator.