Krypton implements the standardized FIDO Universal 2nd Factor (U2F) protocol to provide secure, un-phishable two-factor authentication on the web, using just your phone.
Cost / License
- Free
- Open Source
United StatesPlatforms
- iPhone
- iPad
+4
TOTP Authenticator Alternatives
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 25 alternatives to TOTP Authenticator for a variety of platforms, including Android, iPhone, iPad, Android Tablet and Mac apps. The best TOTP Authenticator alternative is Aegis Authenticator, which is both free and Open Source. Other great apps like TOTP Authenticator are Proton Authenticator, Ente Auth, Bitwarden Authenticator and 2FA Authenticator (2FAS).
Alternatives list
Cost / License
- Free
- Proprietary
Platforms
- Android
- iPhone
+4
🔐 Personal 2FA - Secure, encrypted TOTP authenticator with multi-format import/export, OpenSSL compatibility, and bilingual support (ES/EN).
Cost / License
- Free
- Open Source (MIT)
Platforms
- Self-Hosted
- Online
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.
+2
A simple application for multi-factor authentication, written in HTML using jQuery Mobile, jsSHA, LocalStorage and Application Cache. It implements the TOTP (Time-Based One-Time Password) algorithm according to RFC6238 and has been tested to work with Google Authenticator...
Cost / License
- Free
- Open Source
Application type
Platforms
- Online
- Chrome OS
- Software as a Service (SaaS)
Download TU Latch, a second factor authentication (2FA) and authorisation (2FAuth) app that provides additional protection for your digital services with authorisation controls, TOTP access control and web browsing security from your computer.
Cost / License
- Freemium
- Proprietary
Platforms
- Android
- iPhone
- Apple Watch
- Google Chrome
+3
Kerveros is a robust two-factor authentication code generator that combines ease of use with enterprise-grade security. It generates time-based one-time passwords (TOTP) for your online accounts while keeping your secrets encrypted and protected.
Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- Linux
- Flathub
- Flatpak
Authn8: The Team-First Authenticator for Secure 2FA Sharing
Authn8 is the authenticator built for modern teams, agencies, and enterprise workflows. Whether you're onboarding new staff, managing shared logins, or coordinating across departments, Authn8 simplifies secure 2FA h.
Authman helps you manage your 2-step authentication tokens on iOS, Android and desktop, and securely sync them between devices.
Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- iPhone
- iPad
- Android
- Android Tablet
- Mac
- Windows
+1
Infomaniak Auth is a free mobile application that improves and simplifies the security of Infomaniak accounts protected by two-factor authentication.
Cost / License
- Free
- Proprietary
Platforms
- Android
- iPhone
+1
Two-step verification app with offline code generation, HOTP and TOTP support, biometric login, local auto backup, QR and image import, multi-language interface, account personalization, dark mode, label grouping, and data privacy controls for secure management.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Android
- Online
- Google Chrome
- Mozilla Firefox
+4
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