Cost / License
- Free
- Open Source (BSD-3-Clause)
Platforms
- Linux
- Go (Programming Language)
OTP Auth is described as 'Generates time- and counter-based one-time passwords, supports QR code imports, includes Notification Center widget, ad-free, and enables encrypted iCloud sync' and is a Authenticator in the security & privacy category. There are more than 50 alternatives to OTP Auth for a variety of platforms, including iPhone, Android, iPad, Android Tablet and Mac apps. The best OTP Auth alternative is Aegis Authenticator, which is both free and Open Source. Other great apps like OTP Auth are Proton Authenticator, Ente Auth, Bitwarden Authenticator and 2FA Authenticator (2FAS).

Effortlessly share 2FA SMS with your team. This number works with all services, from WhatsApp to ChatGPT, and connects to numerous tools through Zapier or our webhook integration.



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.




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




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.




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.




Daito is a web-based 2FA authenticator for TOTP tokens. It enables you to share 2FA tokens with others to simply protecting shared accounts. No phone needed.

Hermes offers a straightforward solution for overseeing two-factor authentication accounts (SHA1), providing support for a wide range of platforms, including Gmail, Dropbox, and thousands of other websites.

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.



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