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

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