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Logseq vs SiYuan: catalog facts
Logseq	SiYuan
Freemium The app is free and open source under the AGPL 3.0. Logseq Sync is a paid service, and…	Freemium Most features are free, including for commercial use. The official cloud sync and assets…
Windows, macOS, Linux, Android, iOS	Windows, macOS, Linux, Android, iOS, Self-hosted
Notes are plain Markdown files in a folder you control Block-level linking and embedding, not just page links	Block-level references and two-way links with custom attributes SQL queries embedded inside notes for building your own views
The database version is in beta and the project warns data loss is possible Outliner structure does not suit long-form prose	Notes live in the app's own store rather than plain files in a folder The interface has a lot of concepts to learn at once
Downloadable app	Downloadable app, Self-hosted
Open source	Open source
License: AGPL-3.0	License: AGPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 21, 2026

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