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CleanMyMac vs OnyX: catalog facts
CleanMyMac	OnyX
Paid Paid app with a free trial.	Free Free to use; the developer accepts donations.
macOS	macOS
Several maintenance tasks combined in one Smart Care scan Includes a malware scanner alongside cleanup	Many maintenance tasks without typing Terminal commands Access to hidden settings in Finder, Dock and Safari
macOS only Full use requires buying after the trial	Each version works only with one macOS release Latest version requires an Apple silicon Mac
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account 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 23, 2026

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