# Chronos Authenticator — Open-source 2FA Authenticator

> Open-source 2FA authenticator with encrypted backup and token management. (iPhone/iPad app by Joel-David Wong.)

- Source: https://appshunter.io/ios/app/chronos-authenticator/id6503929490 (this page in markdown: same URL + `.md`)
- Developer: [Joel-David Wong](https://appshunter.io/developer/1750409239)
- Category: Productivity
- Price: Free
- Rating: 5.00/5 from 3 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 6 MB
- Languages: American English
- Released: 2024-06-17
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/chronos-authenticator/id6503929490/reviews.md

## What is Chronos Authenticator?

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.

Features:
• Open-source
• End-to-end encrypted: Only encrypted token data is stored on the device and in iCloud
• Backup & Sync (optional): Effortlessly backup and sync your data with iCloud
• Export Tokens: Easily export your tokens for backup or transfer
• Import Tokens: Easily import your tokens from other authenticators
• Anonymous: No telemetry & app account required

## Key features

- Open-source
- End-to-end encrypted token storage
- Optional iCloud backup and sync
- Token export and import
- Anonymous usage (no account required)

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/chronos-authenticator/id6503929490/reviews.md

### 5/5 — It’s perfect.

*2025-06-24*

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

### 5/5 — Tiny, simple, and secure

*2025-06-09*

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.

## Frequently asked questions about Chronos Authenticator

### 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.

## Version history (last 5 releases)

### 19.1 — 2025-10-20

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

### 19.0 — 2025-09-15

What’s New
• Support for iOS 26

### 18.2 — 2025-04-06

What’s New
• Tokens can now be assigned tags for better organization
• UI fixes and improvements

### 18.1 — 2025-04-04

What’s New
• Tokens can now be assigned tags for better organization
• UI fixes and improvements

### 17.3 — 2025-01-18

What’s New
• UI improvements

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*