Unhappy – CastleStorm - Free to Siege Review

I played this a while back when I was on Android. I switched back to iPhone and it wasn’t available. Now I’ve found it again and it is available... but guess what? It won’t even open. It crashes like Chinese NASCAR: all at once and right at the beginning. Any help would be appreciated. Thanks
Review by RKeanu on CastleStorm - Free to Siege.