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Limnu vs Microsoft Whiteboard: catalog facts
Limnu	Microsoft Whiteboard
Freemium Free to try, with paid plans for regular use.	Freemium Included with Microsoft 365 plans, which offer a free trial.
Web	Web
Smooth freehand drawing that resembles a physical whiteboard Start sketching without signing up	Infinite canvas for freeform drawing Real-time collaboration across devices
Freehand focus, not suited to structured diagrams Works online only	Requires a Microsoft account Best suited to people already in Microsoft 365
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	Account 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 October 2, 2026

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