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Mac Sai vs Tencent Lemon Cleaner: catalog facts
Mac Sai	Tencent Lemon Cleaner
Free Free and open source.	Free The developer offers a downloadable full version and a separate App Store edition.
macOS	macOS
Cleaner, optimizer and malware scanner in one app Apple-notarized builds	Finds large, duplicate, and similar photo files Includes application uninstall and disk space analysis
macOS only Young project from a single maintainer	The App Store edition omits some features available in the full version
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
Not stated if an account is 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 8, 2026

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