# Chronos Authenticator privacy rating

Open source two-factor authentication app for iOS that supports TOTP and HOTP codes. Tokens are encrypted on the device, with optional encrypted iCloud sync and exports.

## Summary

Chronos Authenticator scores 80 out of 100 (grade B) on the two-factor authentication criteria. It meets 3 of 4 criteria: open source, no trackers or telemetry and no ads or data sales. It does not meet independent audit.

- Website: https://github.com/joeldavidw/Chronos
- Source code: https://github.com/joeldavidw/Chronos
- License: AGPL-3.0
- Category: [Two-factor authentication](https://privacyratings.com/two-factor-authentication/)
- Grade: B (80/100)

## Criteria

| Criterion | Answer | Note | Evidence |
| --- | --- | --- | --- |
| Open source | Yes | AGPL-3.0. | https://github.com/joeldavidw/Chronos/blob/main/LICENSE |
| No trackers or telemetry | Yes | The project states the app has no telemetry and needs no account. | https://github.com/joeldavidw/Chronos#features |
| No ads or data sales | Yes | Free open source app with no ads or paid tiers. | https://github.com/joeldavidw/Chronos#readme |
| Independent audit | No | No independent audit is published. |  |

Source: https://privacyratings.com/two-factor-authentication/chronos-authenticator/
Edit: https://github.com/privacyratings/privacyratings.com/edit/main/ratings/two-factor-authentication/chronos-authenticator.md