# SiYuan privacy rating

Local-first personal knowledge management app with Markdown editing, block-level references, bidirectional links and databases. Data stays on the device, with optional paid end-to-end encrypted cloud sync or third-party storage sync.

## Summary

SiYuan scores 80 out of 100 (grade B) on the notes 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. It is based in China: Not in the Five, Nine or Fourteen Eyes.

- Website: https://b3log.org/siyuan/en/
- Source code: https://github.com/siyuan-note/siyuan
- License: AGPL-3.0
- Jurisdiction: China. Not in the Five, Nine or Fourteen Eyes.
- Platforms: Windows, macOS, Linux, Android, iOS
- Home page trackers: Cloudflare Web Analytics (cookieless analytics)
- Category: [Notes](https://privacyratings.com/notes/)
- Grade: B (80/100)

## Criteria

| Criterion | Answer | Note | Evidence |
| --- | --- | --- | --- |
| Open source | Yes | AGPL-3.0. | https://github.com/siyuan-note/siyuan/blob/master/LICENSE |
| No trackers or telemetry | Yes | The privacy policy states the app collects no personal information or usage data. Exodus finds no trackers in the Android app. | https://b3log.org/siyuan/en/privacy.html |
| No ads or data sales | Yes | Free core app funded by one-time Pro licences, cloud sync subscriptions and sponsors, with no ads. | https://b3log.org/siyuan/en/pricing.html |
| Independent audit | No | No independent audit is published. |  |

Source: https://privacyratings.com/notes/siyuan/
Edit: https://github.com/privacyratings/privacyratings.com/edit/main/ratings/notes/siyuan.md