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iStat Menus vs Fanny: catalog facts
iStat Menus	Fanny
Paid Paid single or family license with upgrade pricing from version 6; also included in…	Free Free to download.
macOS	macOS
Wide range of sensors and statistics in the menu bar Highly customisable menu bar items and menus	Current, target, minimum and maximum speed for each fan CPU and GPU temperature at a glance
macOS only Weather data is included for six months with a license	Monitoring only, no fan control Narrow scope compared with full system monitors
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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