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Whimsical vs Cacoo: catalog facts
Whimsical	Cacoo
Freemium Free to start, with paid plans for more features.	Freemium A free plan is available, with paid plans for more features and teams.
Web	Web
Diagrams and wireframes in one tool Real-time editing with comments	Real-time collaborative diagram editing Many integrations including Slack, Confluence and Google Drive
Boards are stored in Whimsical's cloud Some features are in paid plans	Requires an account Browser-based, so offline use is not described
Downloadable app, Web application	Web application, Hosted service
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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