SiYuan

Privacy-first, self-hosted, fully open-source PKM tool

Yunnan Liandi Technology Co., Ltd. · org.b3log.siyuan

Not rated yet 10K+ downloads v3.7.0-rc.1 65.3 MB Android 8.0+ PEGI 3 · Everyone

Download APK 65.3 MB All versions

At a glance

Latest version: v3.7.0-rc.1 (319)
Updated: Jun 29, 2026 (3 months ago)
APK size: 65.3 MB
Requires: Android 8.0+ (API 26)
CPU support: ARM 64-bit
Category: Productivity (app)
Permissions: 12 (1 sensitive)
Website: b3log.org/siyuan
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

SiYuan is an app by Yunnan Liandi Technology Co., Ltd. in the Productivity category. It includes native code only for ARM 64-bit, so it won't install on phones that can only run 32-bit apps.

It asks for 12 permissions, 1 of them sensitive: camera.

What's new in v3.7.0-rc.1

This version improves some details.

Description

From the listing uploaded by “nelcas”.

SiYuan is a privacy-first personal knowledge management system, support fine-grained block-level reference and Markdown WYSIWYG.

Security & authenticity

Security rating: Unknown

Signing certificate

Certificate issued to “B3log” The developer's name — though anyone can put any name in a certificate.

Store checks and file details

Developer signature not checked yet Jun 29, 2026
Signed byO=B3log, L=Kunming, ST=Yunnan
Signing certificate (SHA-1)81:08:D9:72:46:36:7A:0A:21:80:3B:C7:0C:B4:C9:55:CC:35:F9:4C
File MD5ecef2f0e1a68039947be334433d1b408
Uploaded by “nelcas” 549 followers · uploading since 2025

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (12)

SiYuan requests 12 permissions, 1 of them sensitive.

Camera Sensitive android.permission.CAMERA
Add home-screen shortcuts com.android.launcher.permission.INSTALL_SHORTCUT
Foreground service special use android.permission.FOREGROUND_SERVICE_SPECIAL_USE
Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) org.b3log.siyuan.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
Run foreground services android.permission.FOREGROUND_SERVICE
Schedule exact alarms android.permission.SCHEDULE_EXACT_ALARM
Show notifications android.permission.POST_NOTIFICATIONS
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Wi-Fi android.hardware.wifi

SiYuan APK: questions and answers

Can I install this APK over the version I already have?

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is the SiYuan APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Unknown. After downloading, check that the file's MD5 is ecef2f0e1a68039947be334433d1b408.