Arranger is a much-needed tool for the OSX interface, bringing resizing and window movement automation to the Mac. Living in the menu bar of your computer, this app allows you to set hot keys for numerous functions. You can move windows automatically, resize them, and split them up according to the dimensions of your screen. One of the few functions that Windows users have over Mac users is provided with this app.
After installing Arranger, which involves the standard drag and drop to the applications folder, you will need to verify the app to open because it comes from a third-party site. After verification, a new icon joins your menu bar and you can start swapping out windows, moving them around, or automatically resizing them to various corners of the screen. Even just the split window function is a useful one -- something that Windows users have enjoyed for years. When you throw in the ability to map each of the resizing tools to a hot key of your choice and keep the app running in the background whenever you turn on your computer, this becomes a very useful tool.
If you frequently work with a large number of apps and are not satisfied with the mission control settings already on your Mac, Arranger is a nice tool to add to your menu bar. It's quick, doesn't use up much memory, and allows you to quickly move windows around the screen to streamline work and collaboration between programs you are using.