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Magnet vs Loop: catalog facts
Magnet	Loop
Paid Sold through the Mac App Store with free updates.	Free Free and open source, with optional donations.
macOS	macOS
Drag-to-edge snapping as well as keyboard shortcuts Halves, thirds, quarters and full screen layouts	Radial menu for picking window positions quickly Keyboard shortcuts as well as mouse-driven selection
Mac only Only available through the Mac App Store	Requires macOS 13 or later macOS only
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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