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Desmos vs Kig: catalog facts
Desmos	Kig
Free The calculators are free to use.	Free Free and open source as part of the KDE applications.
Web	macOS, Linux
Graphing, scientific, geometry and 3D calculators in one place Runs in the browser with nothing to install	Constructions update live as you drag elements Extensible with macros and Python scripting
Web-based, so it needs a browser and connection Not open source	No Windows or mobile version listed Narrower in scope than GeoGebra
Web application	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0-or-later
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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