A free app for Android, by Markus Fisch.

You can find a lot of launchers on Google Play, but the ones that have the best user experience are the ones that give you more control over your phone, allowing you to customize the way you interact with it. The most popular and best-selling launchers in the market are the ones that have this ability to customize the user interface.

In the case of Pie Launcher, you can customize the user interface in a very easy and intuitive way. You can change the layout of the icons in the app, as well as the colors and sizes of the icons, in order to have a more personalized and easier-to-use interface.