# RethinkDNS & Firewall privacy rating

Open-source DNS-based content blocker and firewall for Android that does not require root.

## Summary

RethinkDNS & Firewall scores 80 out of 100 (grade B) on the mobile security apps 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://rethinkdns.com
- Source code: https://github.com/celzero/rethink-app
- License: Apache-2.0
- Home page trackers: none found
- Category: [Mobile security apps](https://privacyratings.com/mobile-security-apps/)
- Grade: B (80/100)

## Criteria

| Criterion | Answer | Note | Evidence |
| --- | --- | --- | --- |
| Open source | Yes | Apache-2.0. | https://github.com/celzero/rethink-app/blob/main/LICENSE |
| No trackers or telemetry | Yes | The F-Droid build has no trackers, and Crashlytics crash reporting in the Play Store build is opt-in. | https://rethinkdns.com/privacy |
| No ads or data sales | Yes | The privacy policy states no data is sold and the app has no ads. | https://rethinkdns.com/privacy |
| Independent audit | No | No independent audit is published. |  |

Source: https://privacyratings.com/mobile-security-apps/rethinkdns-firewall/
Edit: https://github.com/privacyratings/privacyratings.com/edit/main/ratings/mobile-security-apps/rethinkdns-firewall.md