GO Launcher is among the most popular Android launchers out there with well over 100 million installs to date. This is likely thanks to its simplicity and extensive theming options. It comes with a fairly vanilla set of features that allow for slight customization but the biggest feature is the theming. There are a metric ton of GO Launcher themes and you can also use icon packs with this launcher. It’s easy to use and works rather well, even if some believe it to be a tad overrated.