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Rectangle vs Penc: catalog facts
Rectangle	Penc
Freemium Rectangle is free and open source under the MIT licence. Rectangle Pro is a separate paid…	Free Free download from GitHub releases.
macOS	macOS
Keyboard shortcuts and drag-to-edge snap areas, both configurable Thirds and two-thirds layouts, not just halves	Move and resize windows with two-finger gestures Snap to halves and quarters with a fast swipe
macOS 10.15 or newer Needs accessibility permissions, which people are rightly cautious about	macOS only Needs a trackpad to be useful
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

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