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Moom vs SizeUp: catalog facts
Moom	SizeUp
Paid $15 license valid forever with at least one year of updates, and a free trial.	Paid $12.99 licence with an unlimited free trial.
macOS	macOS
Customizable pop-up palette on the window buttons Saved window layouts for different display setups	Half and quarter screen actions from the keyboard Moves windows between multiple displays
macOS only Paid, with upgrade fees for later major versions	Stated compatibility ends at macOS 14 Sonoma Mac only
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
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.