Compare software

uBar vs DockDoor: catalog facts
uBar	DockDoor
Best for: Mac users who prefer a Windows-style taskbar over the Dock	Best for: Shows window previews when hovering macOS Dock icons, plus an Alt-Tab switcher
Paid Paid app with a 14-day free trial.	Free The software is free under its open-source licence. Hosting, hardware and external services are separate.
macOS	macOS
Taskbar or dock mode, switchable to suit how you work Separate bar per monitor, or mirrored across all All 4 strengths for uBar Taskbar or dock mode, switchable to suit how you work Separate bar per monitor, or mirrored across all Live window previews and per-window entries Recently updated with support for current macOS	Hovering a Dock icon previews every open window for that application, which macOS otherwise leaves you guessing about.
Paid after the trial macOS only	This is the free application; the separately sold DockDoor Pro holds the extra features, and it needs accessibility… Full limitations for DockDoor This is the free application; the separately sold DockDoor Pro holds the extra features, and it needs accessibility permissions.
Downloadable app	Downloadable app
Not open source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Offline features available	Not stated if it works offline
Official website Full listing and sources Sources for uBar ubarapp.com Catalog checked September 24, 2026	Official website Full listing and sources Sources for DockDoor github.com/ejbills/DockDoor Catalog checked September 22, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.