GO Launcher is a personalization application developed by the GO Launcher Dev Team. This application lets you change the appearance of your home screen.
Once you've installed GO Launcher, you'll be able to choose from the library of over 10,000 different themes for your home screen. Along with being able to change the theme of your home screen, you can use GO Launcher to customize various parts of Android with widgets like a batter monitor or adding an extra clock.
Overall, GO Launcher is an impressive way to modify Android but you can deal with some performance issues along with advertisements from other products by the GO Launcher Dev Team.