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Grid vs Loop: catalog facts
Grid	Loop
Paid Paid licence for up to three Macs, with a one-week free trial.	Free Free and open source, with optional donations.
macOS	macOS
Several ways to snap: gestures, shortcuts, dragging and menu bar Multi-monitor and rotated screen support	Radial menu for picking window positions quickly Keyboard shortcuts as well as mouse-driven selection
macOS only Paid after a one-week trial	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 October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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