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ArityCalc vs Calculator M3: catalog facts
ArityCalc	Calculator M3
Free Free and open source under the Apache 2.0 licence.	Free Free and open source under the GPL 3.0, with no ads.
Android	Android
Complex number support 2D graphing of multiple functions and their derivatives	No data collection or network use for calculations Scientific functions and calculation history
Developer says it will stop working on certified Android devices once Google's verification rule applies Android only	Android only On-device AI models need extra storage and a capable phone
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: GPL-3.0-only
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.