Everyday and scientific math
Basic, scientific, percent, fraction, permutation, graphing, geometry, grades, money, unit conversion, number tools, and time workflows.
Great Calculator brings everyday arithmetic, scientific math, graphing, fractions, unit conversion, money tools, time calculations, handwriting input, photo equation input, and optional Voice Math into one iPhone and iPad app.
Current release: local-first utility, optional camera/speech/currency features, no live ads, no account system.
This page intentionally avoids placeholder, beta-only, or unavailable feature claims.
Basic, scientific, percent, fraction, permutation, graphing, geometry, grades, money, unit conversion, number tools, and time workflows.
Handwriting and camera-based equation input are processed in the app with Apple platform recognition frameworks and local repair logic.
Microphone and speech recognition are used only when you choose spoken input for a math problem.
Live exchange-rate lookups are on demand; returned rates are cached locally to reduce repeat network requests.
Committed calculator history and display preferences stay on the device until you clear them or remove the app.
The app is configured for iPhone and iPad with portrait and landscape support.