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PrettyClean vs Mac Sai: catalog facts
PrettyClean	Mac Sai
Free Free to download and use.	Free Free and open source.
macOS	macOS
Cleans developer build caches as well as system caches Shows every scanned file before cleaning	Cleaner, optimizer and malware scanner in one app Apple-notarized builds
macOS only Not open source	macOS only Young project from a single maintainer
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is 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.