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Cinderella vs Kig: catalog facts
Cinderella	Kig
Free The official site says all features are available for free.	Free Free and open source as part of the KDE applications.
Windows, macOS, Linux	macOS, Linux
Builds and manipulates interactive geometric constructions Includes simulations for virtual laboratories	Constructions update live as you drag elements Extensible with macros and Python scripting
The software uses Java technologies.	No Windows or mobile version listed Narrower in scope than GeoGebra
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0-or-later
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked September 24, 2026

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