AOKP, short for Android Open Kang Project, is an open source replacement distribution for smartphones and tablet computers based on the Android mobile operating system. The name is a play on the word kang and AOSP (Android Open Source Project). The name was a joke, but it stuck. It was started as free and open source software by Roman Birg based on the official releases of Android Open Source Project by Google, with added original and third-party code, features, and control.
Although only a portion of the total AOKP users elect to report their use of the firmware, as of September 2013, it is used by more than 3.5 million devices across the world.