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OnyX vs Sensei: catalog facts
OnyX	Sensei
Free Free to use; the developer accepts donations.	Freemium Free download, with a paid version available to buy.
macOS	macOS
Many maintenance tasks without typing Terminal commands Access to hidden settings in Finder, Dock and Safari	Real-time CPU, GPU and battery stats in the menu bar Customizable widgets and dashboards
Each version works only with one macOS release Latest version requires an Apple silicon Mac	macOS only Some features require a paid purchase
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account 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 September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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