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DockDoor vs HyperDock: catalog facts
DockDoor	HyperDock
Free The software is free under its open-source licence. Hosting, hardware and external…	Paid Sold as a paid app; check the developer's site for the current price.
macOS	macOS
Hovering a Dock icon previews every open window for that application, which macOS otherwise leaves you guessing about.	Per-window previews when hovering on Dock items Window snapping to screen edges
This is the free application; the separately sold DockDoor Pro holds the extra features, and it needs accessibility…	macOS only Product page still describes iTunes controls, suggesting slow updates
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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