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FreeCAD vs Zoo Design Studio: catalog facts
FreeCAD	Zoo Design Studio
Free Free and open source, funded by donations and sponsorship.	Freemium Free to download, with paid plans listed on the pricing page.
Windows, macOS, Linux	Windows, macOS, Linux, Web
Parametric: change a dimension and the model updates through its history Sketch constrained 2D geometry and build 3D objects on top of it	Runs on macOS, Windows and Linux plus a browser build Built-in AI agent for designing and iterating parts
Workbenches vary a lot in polish and consistency CAD concepts plus FreeCAD’s own conventions make for a long learning curve	Browser version is a test build Younger than established CAD packages
Downloadable app	Downloadable app, Web application
Open source	Closed source
License: LGPL-2.1	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 23, 2026

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