AppFlowy vs Obsidian
Both are alternatives to Notion. Here's how they stack up — verified facts, no spin.
Also searched as Obsidian vs AppFlowy — same comparison, one verdict.
AppFlowy is open source (AGPL-3.0) and Obsidian is not (Proprietary (free)) — so the real question is whether you want to own the notes & knowledge stack or rent it.
AppFlowy
The open-source Notion alternative, self-hostable.
AppFlowy mirrors Notion's docs-plus-databases model as an open-source app you can run locally or self-host, keeping your data on infrastructure you control.
Obsidian
Local Markdown notes with a huge plugin ecosystem.
Obsidian keeps every note as a local Markdown file and layers a powerful linked-notes and plugin ecosystem on top. It is free to use and local-first, though the app itself is closed-source.
Side by side
10 points of comparison, every one read from a verified field. Green marks the side that wins a row outright. A dash means we do not hold that fact — never that it is zero.
| AppFlowy | Obsidian | |
|---|---|---|
| Sovereignty ScoreOur transparent 0–100 composite for data ownership and exit cost. | 85 | 78 |
| Open source | Yes | No |
| Self-hostable | Yes | No |
| Local-first data | Yes | Yes |
| License | AGPL-3.0 | Proprietary (free) |
| Pricing | Free / open-source; optional paid cloud | Free for personal use; paid Sync/Publish optional |
| RAM to run it wellThe figure that actually matters, not the vendor's minimum. | 1 GB for the desktop app; 2 GB for the self-hosted cloud | — |
| Realistic running costWhat the box costs each month if you run it yourself. | $0 — it runs on the machine you already own, or $12–20/mo if you self-host AppFlowy Cloud for sync | — |
| Setup timeHonest first-install estimate, not the marketing quickstart. | 20 minutes local; 2 hours for self-hosted sync | — |
| Ongoing maintenanceThe part nobody budgets for. | Active. It is young and moving quickly. | — |
AppFlowy edges it on the Sovereignty Score, but the right pick depends on the trade-offs below.
Weighing both against staying on Notion? Is Notion free? What it actually costs →
AppFlowy
Strengths
- +Closest feel to Notion
- +Self-hostable backend
- +Active development
Trade-offs
- −Younger than Notion, some gaps
- −Self-hosting takes setup
Obsidian
Strengths
- +Your notes are plain local Markdown
- +Enormous plugin ecosystem
- +Fast and offline
Trade-offs
- −App is closed-source
- −Official sync is a paid add-on
Which one fits you
The trade-offs above, turned into a decision. Find the line that describes your team.
Choose AppFlowy
if you want the source and the option to fork it, and you would rather run it on your own hardware, and closest feel to Notion.
Choose Obsidian
if your notes are plain local Markdown.
Neither, yet
if both carry a real cost you should weigh first — younger than Notion, some gaps, and app is closed-source. If either of those is a dealbreaker for your team, the shortlist is wrong rather than the choice.
What it takes to run these yourself
Real requirements and honest running costs, not the vendor quickstart.
AppFlowy vs Obsidian — common questions
Is AppFlowy a better fit than Obsidian for notes & knowledge?
It depends on what you are optimising for, and the honest split is this: AppFlowy scores 85 to Obsidian's 78 on data ownership and exit cost, so it is the safer choice if you care about being able to leave. Obsidian earns its place on a different axis — your notes are plain local Markdown. Neither is a wrong answer for every team; the table above is the actual comparison.
What happens if we want to switch later?
AppFlowy keeps its data local or in open formats, so leaving is an export rather than a negotiation. Obsidian keeps your data on its own infrastructure, which is the part to plan for: confirm the export path before you commit, not when you are already trying to leave.
Can I self-host AppFlowy?
AppFlowy can be self-hosted; Obsidian cannot, so it stays on the vendor's infrastructure whatever you do.
Are AppFlowy and Obsidian both alternatives to Notion?
Yes — both appear in our Notion comparison, which is why they are worth putting side by side. People usually arrive here already having decided to move off Notion and now choosing between the two replacements, which is a narrower and much easier question.
More Notion head-to-heads
More notes & knowledge comparisons
Related alternative guides
Facts verified 2026-07-04. Licenses and pricing change — spotted something out of date? That's a correction we want.