AppFlowy vs SiYuan

Detailed comparison to help you choose the right tool for your needs

A

AppFlowy

Open-source Notion alternative with local-first architecture

4.3
Editorial Rating
S

SiYuan

Privacy-first local knowledge management with block-level references

4.5
Editorial Rating

Quick Comparison

Rating

4.3
vs
4.5

Starting Price

Free
vs
Free

Pricing Model

free
vs
freemium
Feature
AppFlowy
SiYuan
Docs and wikis
Kanban boards
Database views
Calendar view
Self-hosted option
Mobile apps
Block-level references
Bidirectional linking
Spaced repetition
E2E encrypted sync
Math and diagrams

AppFlowy Pros

  • Open-source Notion alternative
  • Local-first privacy
  • Rust performance
  • Active development
  • Growing plugin system
  • Cross-platform

AppFlowy Cons

  • Fewer features than Notion
  • Smaller community
  • Some features still in development
  • Less polished UX
  • Limited integrations
  • Early-stage product

SiYuan Pros

  • Block-level referencing more granular than any competitor
  • Spaced repetition built in for active learning
  • End-to-end encrypted sync option for cross-device use
  • Rich content support including math diagrams and code
  • Desktop and mobile apps for all platforms
  • Completely free for local use

SiYuan Cons

  • Steeper learning curve than simpler note apps
  • Block reference syntax takes time to master
  • Cloud sync requires paid subscription
  • Smaller community than Obsidian or Notion
  • Interface can feel overwhelming for simple notes
  • English documentation sometimes lags Chinese original

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