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TheBrain vs Tinderbox: catalog facts
TheBrain	Tinderbox
Free The desktop app is free according to the developer's site.	Paid Paid app that can be downloaded and tried before ordering.
Windows, macOS, Linux	macOS
Ideas can link to many contexts without duplication Long-developed product with a large user base	Visual map views for arranging notes Documents can organize themselves with rules
Network-style interface takes time to learn Not open source	Mac only Paid
Downloadable app	Downloadable app
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 October 2, 2026	Official website Full listing and sources Checked September 24, 2026

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