Notion vs Obsidian
Notion takes the higher SoftwareScore, 73 to 70. That's close enough that fit matters more than the number. Both are scored on the same public formula. See how.
This is the classic workspace-versus-knowledge-base decision. Pick Notion if you're building shared docs, wikis, and databases with a team and don't mind living in the cloud. Pick Obsidian if your notes are yours alone, you want them as plain files on your own disk, and you'd rather extend the app with plugins than pay for collaboration you won't use.
Notion vs Obsidian: our take
Notion takes the higher SoftwareScore, 73 to 70. That's close enough that fit matters more than the number.
Notion pulls ahead on Collab and AI (Collab 10 vs 3), which makes it the stronger pick for teams.
Obsidian pulls ahead on Ownership and Value (Ownership 10 vs 3), which makes it the stronger pick for privacy and data control.
The clearest divide is Ownership (Notion 3, Obsidian 10). If that axis is central to how you work, let it settle the choice.
On lock-in, Obsidian is the safer bet: it scores 10/10 on data ownership to Notion's 3, so weigh how easily you could move your notes out later.