Chronos Authenticator

Chronos Authenticator

Open-source 2FA Authenticator

3 ratings
2 reviews
Free

Details

  • Released
  • Updated
  • June 17, 2024
  • October 20, 2025
Chronos Authenticator screenshot #1 for iPhone
Chronos Authenticator screenshot #2 for iPhone
Chronos Authenticator screenshot #3 for iPhone
Chronos Authenticator screenshot #4 for iPhone
Chronos Authenticator screenshot #5 for iPhone
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About

This open-source app provides secure two-factor authentication using time-based and counter-based methods. It offers end-to-end encryption for token data and optional iCloud backup and sync for convenience. Easily import and export your authentication tokens.

Open-source
End-to-end encrypted token storage
Optional iCloud backup and sync
Token export and import
Anonymous usage (no account required)
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What's New in Chronos Authenticator

19.1

October 20, 2025

What’s New • Added the ability to copy tokens when they are hidden • Refreshed the Settings screen layout

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User reviews

It’s perfect.

The best authenticator app I’ve ever seen. Simple and free nothing unnecessary.

Tiny, simple, and secure

Chronos Authenticator is literally the best authentication app available for iOS. It’s tiny and not cluttered with bloat. It’s simple and only has features I need from an Authenticator. And lastly, it’s secure and allows me to access from multiple devices.

FAQ

What authentication methods does Chronos support?

Chronos Authenticator supports both time-based (TOTP) and counter-based (HOTP) authentication methods, offering flexibility for various services.

Is my token data secure with Chronos Authenticator?

Yes, Chronos Authenticator provides end-to-end encryption for all token data stored on your device and in iCloud, ensuring robust security.

Can I back up my tokens with Chronos Authenticator?

Chronos Authenticator offers an optional backup and sync feature using iCloud, allowing you to effortlessly back up and sync your data.

How can I transfer my tokens from Chronos Authenticator?

You can easily export your tokens from Chronos Authenticator for backup purposes or to transfer them to another device or authenticator app.

Does Chronos Authenticator require an account?

No, Chronos Authenticator is designed to be anonymous. It does not require telemetry or an app account for usage.

What devices is Chronos Authenticator available on?

Chronos Authenticator is currently supported on iPhones, as indicated by the provided device compatibility data.

How often is Chronos Authenticator updated?

The latest version of Chronos Authenticator is 19.1, and it was last updated on October 20, 2025, suggesting a recent update cycle.

What is the user sentiment for Chronos Authenticator?

Based on the available data, Chronos Authenticator has a perfect 5.0-star rating from 3 reviews, indicating very positive user sentiment.