Khybur vs SiYuan
Khybur
khybur.com
SiYuan
b3log.orgSide by side
| Figure | Khybur | SiYuan |
|---|---|---|
| Price from | $0.25/mo | $148/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 3 | 4 |
| Spec score · Personal Knowledge Management Software | 8.1 (#20) | 8.5 (#12) |
| Privacy | Khybur says note content is shared with other users only when access is granted to a shared Notespace. | The privacy policy says SiYuan does not collect user personal information or usage data and that data is kept on the user's device under their control. |
Plans
SiYuan
- FreeFree
- Subscription$148 a month
- PRO Features$64, paid once
- Subscription$148, paid once
In their own words
SiYuan
SiYuan is a personal knowledge management system for building a linked collection of notes. It supports Markdown, block-level references and bidirectional links, and organizes content into blocks with more than 20 block-level and more than 10 span-level element types. Backlinks can be filtered and searched; relationship graphs are available across a notebook and at block level. Databases support relations, rollups and templates, while flashcards use the FSRS spaced-repetition algorithm. Its AI feature connects to OpenAI for writing continuation, translation, summaries, brainstorming and grammar or spelling corrections. SiYuan supports offline access, and the maker describes multi-device synchronization as incremental and end-to-end encrypted. It is available on Windows, macOS, Linux, iOS, Android and the web, with a Chrome/Edge extension, API and Docker self-hosting. The maker says data stays under the user's control on their device. Free access is free; PRO Features is listed at $64 a month with lifetime-use wording, and Subscription at $148 a month with 8GB cloud storage.