BetterSnapTool vs AROW

With this feature, you can move any window into the desired position, select 'advanced: create a custom snap area (using current window as template)' from the toolbar and also edit settings for the snap area. It is also possible to edit the size, position, and presentation of the drop-zone, the shortcut for the custom snap area, and a list apps for which the snap area should be available (eg: only show this zone for VLC).

If you use external monitors, the app is useful. It also supports retina screen without problems.

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.

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.

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.

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.