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Numi vs Converter NOW: catalog facts
Numi	Converter NOW
Freemium Free to download, with a paid license offered on the website.	Free Free and open source under the GPL-3.0 licence.
Windows, macOS, Linux, Command line	Windows, Linux, Android, Web
Write calculations as natural text with variables Built-in currency, unit and time zone conversion	Covers both physical units and currencies Same app on Linux, Windows, Android and the web
Licensing terms are set by an end user license agreement rather than an open license Not a scientific or graphing calculator	No dedicated homepage beyond the GitHub repository Scope is limited to conversions
Downloadable app	Downloadable app, Web application
Closed source	Open source
License not stated	License: GPL-3.0-or-later
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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