I have purchased the Quran medina hd from apps store. I have installed it via I tunes. But after installation if I want to log in to my I tunes account the app disappear from the device and it starts loading and the app hangs and asking for wifi connection. I have deserted I pad 3 times and same results happening. I do not have the e mail address of the apps provider to complain. Could anyone pls help me on this.