SiYuan

Yunnan Liandi Technology Co., Ltd.

SiYuan is an open-source (AGPL-3.0-only) Android app by Yunnan Liandi Technology Co., Ltd.. The APK we host is 106 MB, it needs Android 8.0 or newer, and it declares 15 permissions.

The file on this page is SiYuan 3.8.7, 106 MB, and it installs on Android 8.0 and newer.

We compared the signing certificate of this build with the certificate recorded the first time org.b3log.siyuan entered the site, and published both the file's SHA-256 and the certificate's fingerprint above so you can check the download yourself. That comparison says the file was not repackaged by someone else; it is not a review of what the app does.

The manifest inside the APK declares 15 permissions, including access to the camera and the microphone. Android asks you to approve those the first time the app needs them.

Its licence is AGPL-3.0-only. We took this build from F-Droid, and the source for this exact version is linked below.

We do not show a star rating or an install count for this page: we have no measured figure for either, and a number we cannot source is worth less than an empty field.

Download APK · 106 MB

Version: 3.8.7
Size: 106 MB
Requires Android: API 26
Package: org.b3log.siyuan
Signature checked on: Oct 16, 2026
Where this file came from: F-Droid
Licence: AGPL-3.0-only
Source code: Source for this version

File SHA-256: 8dc662d9baa1260ce31ca2612a3275d562eef910a6525fb58aa1726b79edcc93

Signing certificate (SHA-256): 187b9fcbe20f4e2f270f1ebd881edc5092e52514277a8407de59a095d57c2a71

We check that this file carries the same signing certificate as earlier releases of the same package. That shows the APK was not repackaged by someone else — it is not a security review of the app.