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SizeUp vs Rectangle Pro: catalog facts
SizeUp	Rectangle Pro
Paid $12.99 licence with an unlimited free trial.	Paid One-time purchase after a free 10-day trial.
macOS	macOS
Half and quarter screen actions from the keyboard Moves windows between multiple displays	Window throws to 16 positions with one key combination Custom sizes, positions and snap targets
Stated compatibility ends at macOS 14 Sonoma Mac only	macOS only Paid, unlike the free Rectangle
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is 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.