This app dont work properly in iPhone 5S

I configured the alarm with music from iPhone and the alarm sounds with pre-programmed sounds.
I cant see the app display with nice photos when I wake up. I just see the black screen with the alarm notification. If I want see the clock display I have to open it manually. I lost my money.

Lolita5585 about Flip Clock - Weather Alarm Clock and Nightstand for iPhone, v1.6.3