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TreeSheets vs Checkvist: catalog facts
TreeSheets	Checkvist
Free The open-source software is available without a license fee. Hosting, hardware and…	Freemium A free plan is offered, with paid plans for more features.
Windows, macOS, Linux	Web, Browser extension
Combines hierarchical outlines with spreadsheet-like structure.	Keyboard shortcuts for nearly every action, plus a command palette Unlimited hierarchy with filtering and quick navigation
Its nested-grid workflow takes some adjustment for new users.	Runs as an online service rather than a local app Outline-only structure may feel limiting for long-form writing
Downloadable app	Web application, Hosted service, Browser extension
Open source	Closed source
License: Zlib	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 24, 2026

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