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MacSift vs Mac Sai: catalog facts
MacSift	Mac Sai
Free Free and open source.	Free Free and open source.
macOS	macOS
Groups cleanup candidates by app or device Moves selected items to Trash for recovery	Cleaner, optimizer and malware scanner in one app Apple-notarized builds
Requires macOS 26 Tahoe and Apple Silicon Needs Full Disk Access	macOS only Young project from a single maintainer
Downloadable app	Downloadable app
Open 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 8, 2026	Official website Full listing and sources Checked October 1, 2026

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