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Maintenance vs Mac Sai: catalog facts
Maintenance	Mac Sai
Free Free to use, with optional donations to the developer.	Free Free and open source.
macOS	macOS
Runs maintenance tasks without terminal commands Clears application, font and system caches	Cleaner, optimizer and malware scanner in one app Apple-notarized builds
macOS only You must download the version that matches your macOS release	macOS only Young project from a single maintainer
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
No account needed	Not stated if an account is needed
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.