TwoUp

If you're looking for a convenient way to position windows quickly and easily on your Mac, look no further than TwoUp. This handy software allows you to effortlessly fill your screen using a feature known as "window tiling". Even better? It's a feature native to other operating systems, yet it's missing from Mac OS X.

With TwoUp, you get four actions that you can apply to your frontmost application window. You can move your window to fill the left half of your screen using the "Left" action, while "Right" fills the right half. "Up" moves your window to the top half, and "Down" fills the bottom half of your screen.

Using TwoUp is a breeze. You can trigger these actions via the TwoUp menu located within the Mac menu bar or through system-wide shortcuts. By default, holding down the Control+Option+Command keys and pressing an Arrow key tells TwoUp where you want your window to go. But, if those default key combinations don't suit you, you can customize them to fit your needs.

All in all, TwoUp is a fantastic addition to any Mac user's productivity toolbox, providing functionality that's often only available on other operating systems.