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PureMac vs Mac Sai: catalog facts
PureMac	Mac Sai
Free Free and open source under the MIT licence, with no subscription.	Free Free and open source.
macOS, Command line	macOS
Cleans Xcode, Homebrew and system caches App uninstaller that finds orphaned files	Cleaner, optimizer and malware scanner in one app Apple-notarized builds
macOS only Cleanup permanently deletes files, so selections need care	macOS only Young project from a single maintainer
Downloadable app	Downloadable app
Open source	Open source
License: MIT	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 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.