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Math Expression Evaluator vs Calculator M3: catalog facts
Math Expression Evaluator	Calculator M3
Free Free and released into the public domain.	Free Free and open source under the GPL 3.0, with no ads.
Android	Android
Supports named variables in calculations Text-based input similar to a programming language	No data collection or network use for calculations Scientific functions and calculation history
Basic compared with MathCad or Octave Android only	Android only On-device AI models need extra storage and a capable phone
Downloadable app	Downloadable app
Closed source	Open source
License: Public domain	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.