Hi, thanks for your quick reply. I have checked the the battery stats each time and UAPP shows more percentage than the screen or android system. Thanks for you suggestions about factory resetting and uninstalling and reinstalling all my apps one by one. That would certainly show if UAPP was in conflict with another programme. However, this would take so much time to affect for an app that I am unsure sounds any better than the LG stock app when using the internal quad dacs like I do with this phone. Just was wondering if anyone else experienced the same heat/ battery drain issues. Have uninstalled UAPP now and alternating between LG stock app, poweramp alpha, and player pro; still cant make my mind up!