Authenticator is described as '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' and is a Authenticator in the security & privacy category. There are more than 50 alternatives to Authenticator for a variety of platforms, including iPhone, Android, iPad, Android Tablet and Mac apps. The best Authenticator alternative is Bitwarden, which is both free and Open Source. Other great apps like Authenticator are Proton Authenticator, Aegis Authenticator, Ente Auth and Bitwarden Authenticator.
Encrypted Windows app for managing 2FA codes with AEGIS-256 and Argon2id, supporting Windows Hello, portable use, multilingual interface, token import/export, QR code/manual entry, generic TOTP, local storage, and dark mode interface for enhanced security.
Germany
EU
Chronos is an open-source two-factor authentication (2FA) app designed to deliver robust security and reliable backup features. It supports both time-based (TOTP) and counter-based (HOTP) authentication methods.
Singapore
Etopa is a two-factor-authentication app, which runs as a web server and can be accessed using a web browser or using an Android app. You can use the Etopa.de instance or host your own.
Infomaniak Auth is a free mobile application that improves and simplifies the security of Infomaniak accounts protected by two-factor authentication.
Switzerland
Allthenticator unifies digital and physical access with one smartphone-based identity. Users log in to systems and unlock doors via proximity. Supports SSH keys, passkeys, OTP, and peer-based recovery—all managed from a single admin dashboard.
United States
Clockode is a minimal, and offline-only TOTP code generator that stores your authentication secrets in an encrypted local vault, keeping your two-factor codes private and accessible without needing an internet connection.
Authman helps you manage your 2-step authentication tokens on iOS, Android and desktop, and securely sync them between devices.
United States
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.
United States
Two-factor authentication app for Yandex accounts and also other QR-code based temporary codes for two-factor authentication
Russia
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.
