SoundLogin Authenticator is described as 'One-time password generator for RFC6238-based two-factor authentication that allows seamless transfer of one-time passwords from mobile phone to desktop browser via notification sounds' and is an app in the security & privacy category. There are more than 10 alternatives to SoundLogin Authenticator for a variety of platforms, including Android, iPhone, iPad, Android Tablet and Apple Watch apps. The best SoundLogin Authenticator alternative is 2FA Authenticator (2FAS), which is both free and Open Source. Other great apps like SoundLogin Authenticator are Authy, Google Authenticator, FreeOTP and Authenticator Extension.