I have personally tested this App and I was able to cast my android phone's screen to Kodi ( OSMC ) through UPNP.
Really great app worked flawlessly and pretty smooth.
Screen Stream Mirroring Free
https://play.google.com/store/apps/details?id=com.mobzapp.screenstream.trialtags,
screen stream mirroring free, free screnncasting app for android,
cast screen from android to kodi, cast screen from phone to kodi, xbmc, osmc
