Cost / License
- Free
- Open Source (BSD-3-Clause)
Platforms
- Linux
- Go (Programming Language)
Duo mobile is described as 'Duo Mobile works with Duo Security's two-factor authentication service to make logins more secure. The application generates passcodes for login and can receive push notifications for easy, one-tap authentication' and is a Authenticator in the security & privacy category. There are more than 25 alternatives to Duo mobile for a variety of platforms, including iPhone, Android, iPad, Android Tablet and Mac apps. The best Duo mobile alternative is Aegis Authenticator, which is both free and Open Source. Other great apps like Duo mobile are Proton Authenticator, 2FA Authenticator (2FAS), Authy and FreeOTP.

Two-factor authentication app for Yandex accounts and also other QR-code based temporary codes for two-factor authentication




Secure your Zoho Account with easy-to-use, multi-factor authentication. Because hackers won't give you a second chance.




CryptoPhoto gives you a fast and safe way to log into your favorite participating web sites while enjoying leading-edge protection against phishing, malware attacks, and scamming.




Secures accounts with encrypted 2FA and MFA code generation, multi-device synchronization, import/export support, breach alerts, password management, biometric and PIN protection, Apple Watch access, Home Screen widget, organizational folders, and custom icons.




Calculates time- and counter-based one-time passwords on iOS devices, supports QR code import, iPad interface, Notification Center widget, encrypted iCloud sync, Safari extension, Touch ID and password protection, no ads, and does not collect personal data.




Location-based behavioral biometrics SDK and APIs for frictionless mobile identification verification and authentication.



Authenticator Plus generates 2-step verification codes to protect your accounts with your password and phone / tablet.

Authenticator is a simple, free, and open source two-factor authentication app. It helps keep your online accounts secure by generating unique one-time passwords, which you use in combination with your other passwords to log into supporting websites.



SAASPASS is an Authenticator, Password Manager and a repository for Secure notes. It also secures access to computers such as Macs and Win with two-factor authentication. It can be used for personal use and/or by a company to secure their cloud apps.




TOTP Authenticator 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.



