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Notion vs Outline: catalog facts
Notion	Outline
Freemium Free tier for individuals; paid plans add team features and higher limits.	Freemium Hosted plans are paid. Self-hosting is possible under the source-available Business Source…
Windows, macOS, Android, iOS, Web	Web, Self-hosted
Highly flexible structure covers notes, databases, and project boards in one app Real-time collaboration for team use	Fast collaborative editor with slash commands and nested collections
Flexibility comes with a learning curve to set up well Can feel heavier and slower than single-purpose notes apps	Source-available under the Business Source License, not open source The hosted plan is paid and self-hosting needs Postgres, Redis and object storage
Downloadable app, Web application	Self-hosted, Web application, Hosted service
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.