Doesn't work on IPhone6 – Gutterball: Golden Pin Bowling Lite Review

My dad has been playing this on his Samsung device for about a month. Finally decided to give it a try and it doesn't work for the iPhone6. When I open the app, it's a black screen with the ad running at the bottom. Please fix this! I would really like to play.
Review by atomicbomb215 on Gutterball: Golden Pin Bowling Lite.