Best Obsidian - Elegant OTP Authenticator Alternatives & Competitors in 2025

Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.

Key Authy features:

Multi-device synchronization Encrypted backups Offline usage capability Desktop app available

Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens...

Key Aegis Authenticator features:

Open Source No Ads or Tracking Secure Backup Options Import/Export Options

Verify your customers in under 15 seconds anywhere in the world with a cutting-edge SaaS & API platform for Identity Verification and AML/KYC compliance.

Key ComplyCube features:

AML & Sanctions Screening PEP Checks Negative Media Screening Watchlist Screening

Try for free freemium $0.1 (per credit)

Google Authenticator is a multifactor app for mobile devices.

Key Google Authenticator features:

Enhanced Security Offline Access Compatibility Free of Charge

free

Authenticator Plus generates 2-step verification codes and lets you synchronize your accounts.

Key Authenticator Plus features:

Ease of Use Cross-Platform Support Backup and Restore Multi-Language Support

andOTP is a two-factor authentication App for Android 4.4+.

Key andOTP features:

Open Source Offline Functionality User-Friendly Interface Backup and Restore Options

One app to quickly and securely verify your identity online, for all of your accounts.

Key Microsoft Authenticator features:

Enhanced Security Ease of Use Integration with Microsoft Ecosystem Push Notifications

Open source implementation of the two-factor authentication HOTP and TOTP schemes.

Key FreeOTP features:

Open Source No Tracking Offline Functionality Compatibility

The YubiKey is a one-time password device for secure login with two-factor authentication.

Key YubiKey features:

Enhanced Security Phishing Protection Ease of Use Compatibility

Authenticator is a simple, free, and open source two-factor authentication app.

Key Authenticator features:

Open Source Privacy-Focused Simple User Interface Local Storage

Open Source

Simple 2FA Authenticator - Generate Two Factor Authentication tokens.

Key 2FAS features:

Enhanced Security User-Friendly Interface Offline Access Cross-Platform Compatibility

The app for calculating one-time-passwords on iPhone and iPad.

Key OTP Auth features:

Security Open Source Standards Compliance Cross-Platform

Open Source

TOTP Authenticator app makes it easier to setup and manage your 2-factor authentication accounts and tokens. The app allows you to add extra security to your accounts and protects them from hijacking. Available for iOS and Android.

Key TOTP Authenticator features:

Security Offline Functionality Compatibility User-Friendly Interface

freemium $6.0 / One-off

Portable open-source Authenticator for Windows.

Key WinAuth features:

Open Source Multi-Platform Support Portable User-Friendly Interface