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macmon vs iStat Menus: catalog facts
macmon	iStat Menus
Free Free, with source published on GitHub.	Paid Paid single or family license with upgrade pricing from version 6; also included in…
macOS, Command line	macOS
No sudo needed, unlike powermetrics Shows CPU, GPU and Neural Engine power draw	Wide range of sensors and statistics in the menu bar Highly customisable menu bar items and menus
Apple Silicon Macs only Relies on a private macOS API that could change	macOS only Weather data is included for six months with a license
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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