Only the Plex Home Theater was based on Kodi, but it has been discontinued. https://en.wikipedia.org/wiki/Plex_(software)#Plex_Home_Theater_.28discontinued.29

Only the Plex Home Theater was based on Kodi, but it has been discontinued. https://en.wikipedia.org/wiki/Plex_(software)#Plex_Home_Theater_.28discontinued.29 https://en.wikipedia.org/wiki/Plex_(software)#Plex_Home_Thea... Plex apps are 100% closed source as far as I understand.