When comparing AROW vs Hyperdock, the Slant community recommends Hyperdock for most people. In the question“What is the best window manager for Mac?” Hyperdock is ranked 15th while AROW is ranked 22nd. The most important reason people chose Hyperdock is:
Hyperdock adds a lot of small improvements to the default mac dock, like better iTunes controls and calendar event previews.
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Pros
Pro Support for multiple monitors
If you use external monitors, the app is useful. It also supports retina screen without problems.
Pro Customizable options
You can customize the app in Option, for example, where you can change the appearance of the preview outline, adjust the width of the recognition areas, and set keyboard hotkeys for quick window snapping.
Pro Define OS X window buttons
AROW enables you to change the actions of OS X’s window buttons. It only requires either a right or a left-click for the action to take place.
Pro Smart Panel to move and resize windows
The customizable grid panel is very intuitive and is an accurate way to resize and move windows. Simply drag your mouse across its grid, the window will be moved, and resize to the exact position instantly.
Pro Easy ways to snap windows
Simply drag windows to the edges of your Mac’s screen. Once the cursor reaches the screen’s edge, the window will automatically move and resize to fill exactly half or quarter of the screen.
Pro Lots of small improvements to the dock
Hyperdock adds a lot of small improvements to the default mac dock, like better iTunes controls and calendar event previews.
Pro Select individual application
Select individual application windows just by moving the mouse on a dock item, use mouse clicks to quickly open new windows and many more.
Pro Lets you easily find a window you have open
Pro Scroll up/down on menu bar to change size
Scroll up for full size.
Pro Snaps to corners
Cons
Con Trouble with GUI
Yosemite (10.10.5) it works but it's impossible to open the application GUI.
Con Not under active development
Hyperdock doesn't seem to be under active development and hasn't been updated since october 2014.