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Calculator M3 vs Math Expression Evaluator: catalog facts
Calculator M3	Math Expression Evaluator
Free Free and open source under the GPL 3.0, with no ads.	Free Free and released into the public domain.
Android	Android
No data collection or network use for calculations Scientific functions and calculation history	Supports named variables in calculations Text-based input similar to a programming language
Android only On-device AI models need extra storage and a capable phone	Basic compared with MathCad or Octave Android only
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0-only	License: Public domain
No account needed	Not stated if an account is needed
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.