Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Mac
- Windows
- Linux

Authy is described as 'Manage and secure two-factor authentication easily across Gmail, Dropbox, and more. Sync devices, secure backups, and enjoy offline access' and is a very popular Authenticator in the security & privacy category. There are more than 50 alternatives to Authy for a variety of platforms, including iPhone, Android, iPad, Android Tablet and Mac apps. The best Authy alternative is Bitwarden, which is both free and Open Source. Other great apps like Authy are Aegis Authenticator, Ente Auth, Proton Authenticator and 1Password.

Patara is a blockchain-based password & account manager solution ensuring the protection of passwords, crypto wallets, and sensitive data.




Your digital identity will make life easier. Checking people's details confirming the person you’ve met online is who they say they are. Proving your identity to businesses. Proving your age online and out. Securely register and log into websites.




Tokn is a small, privacy-first 2FA / MFA authenticator. Your one-time codes stay on your device, encrypted. No accounts, no cloud sync, no analytics, no ads.








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



Qualys, Inc., is the most widely-deployed information security and compliance cloud solution in the world with over 7,700 customers including a majority of the Forbes Global 100 and a majority of the Fortune 100.
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.




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.




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.




Authman helps you manage your 2-step authentication tokens on iOS, Android and desktop, and securely sync them between devices.



