Compare software

Numi vs Qalculate!: catalog facts
Numi	Qalculate!
Freemium Free to download, with a paid license offered on the website.	Free Free and open source under the GPL.
Windows, macOS, Linux, Command line	Windows, macOS, Linux
Write calculations as natural text with variables Built-in currency, unit and time zone conversion	Unit calculations, unit conversion and live currency conversion built in Symbolic calculation including integrals and equations, with arbitrary precision
Licensing terms are set by an end user license agreement rather than an open license Not a scientific or graphing calculator	Currency rates need an internet connection to update The sheer number of functions and settings is daunting at first
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0
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 1, 2026	Official website Full listing and sources Checked September 21, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.