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ArityCalc vs KmPlot: catalog facts
ArityCalc	KmPlot
Free Free and open source under the Apache 2.0 licence.	Free Free and open source as part of KDE.
Android	macOS, Linux
Complex number support 2D graphing of multiple functions and their derivatives	Several plot types including polar and implicit Plots derivatives and integrals
Developer says it will stop working on certified Android devices once Google's verification rule applies Android only	No Windows build listed Export limited to bitmap formats
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License not stated
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 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.