Hi folks. I have recently acquired an app called 'PopupuiReceiver' which: runs constantly on my Galaxy S4, won't let my phone sleep, drains the battery, comes back within seconds after I've stopped it in 'active applications', and, although it shows up in 'app killer' (and no other app killing app I've tried), won't allow me to send it into oblivion. Could anyone please tell me: what it is, how I might have acquired it, and, most importantly, how do I dump it? Thanks in advance for any advice proffered. Graeme Taylor. Hove, UK.