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CalcYou vs ArityCalc: catalog facts
CalcYou	ArityCalc
Free Free and open source under the GPL-3.0, with no ads.	Free Free and open source under the Apache 2.0 licence.
Android	Android
Scientific calculator, unit converter and grapher in one app No ads or trackers	Complex number support 2D graphing of multiple functions and their derivatives
Currency rates only update with app releases Android only	Developer says it will stop working on certified Android devices once Google's verification rule applies Android only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: Apache-2.0
No account needed	Not stated if an account is 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.