Kodi (formerly XBMC) is a free and open-source media player software application developed by the XBMC Foundation, a non-profit technology consortium. Kodi is available for multiple operating systems and hardware platforms, with a software 10-foot user interface for use with televisions and remote controls. It allows users to play and view most streaming media, such as videos, music, podcasts, and videos from the internet, as well as all common digital media files from local and network storage media.
SPMC is an unofficial fork of Kodi for Android created by Team Kodi developer Koying. While technically unofficial, it contains various "experimental" fixes and settings that can sometimes help users when the normal Kodi for Android doesn't work on their specific hardware, and is sometimes used to test new or exprimental features and functions. SPMC has a different app ID from Kodi, so both can be installed side by side at the same time.
Wonderbox.tv Media Centre (WBMC) is an unofficial Android forks of Kodi 17 designed to run on android 4.4 and benefit from the latest official plugin updates. WBMC v17 has Confluence added to the skins, the Adaptive and RTMP Video Player Input Stream clients pre-enabled and allow unknown sources by default.
Mygica Media Centre is an ANOTHER Android fork of Kodi 17 designed to run on android 4.4 and benefit from the latest official plugin updates.