| Attribute |  ObsidianOther license |  AppFlowyOpen source |  OutlineOther license |
|---|---|---|---|
| Overview | |||
| Primary focus | Local-first Markdown note-taking app with a plugin ecosystem | Open-source, privacy-first Notion alternative you can self-host | Fast, real-time collaborative wiki and knowledge base for teams |
| Deployment | Not specified | Self-hosted | Self-hosted |
| Source model | Other license | Open source | Other license |
| Pricing model | freemium | freemium | paid |
| API available | Not specified | Not specified | Not specified |
| Windows desktop | Not specified | Not specified | Not specified |
| Mobile app | Not specified | Not specified | Not specified |
| Overview | Obsidian is a local-first note-taking app that stores notes as plain Markdown files, extensible through a large community plugin ecosystem, free for personal use with paid Sync, Publish and commercial-license add-ons. | AppFlowy is an open-source workspace app for docs and wikis, offered as a desktop app backed by hosted AppFlowy Cloud or a self-hosted AppFlowy Cloud deployment. | Outline is a team wiki and knowledge base with real-time collaborative editing, nested docs and search, sold as paid cloud plans with an optional self-hosted deployment. |
| Explore further | |||
| Vendor website | Visit vendor ↗ | Visit vendor ↗ | Visit vendor ↗ |
| ITHub profile | View full profile → | View full profile → | View full profile → |
ObsidianOther licenseAppFlowyOpen sourceOutlineOther licenseⓘ Confirm technical details and prices with each vendor before making a decision.