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PureMac vs Disk Diet: catalog facts
PureMac	Disk Diet
Free Free and open source under the MIT licence, with no subscription.	Paid One-time purchase with no subscription, listed at $2 on the product page.
macOS, Command line	macOS
Cleans Xcode, Homebrew and system caches App uninstaller that finds orphaned files	Targets many common clutter locations in one scan Includes Xcode developer folders and old iOS updates
macOS only Cleanup permanently deletes files, so selections need care	macOS only Requires macOS 11.5 or later
Downloadable app	Downloadable app
Open source	Closed 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 2, 2026

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