Won't Run at all – Caveman Review

Well I've enjoyed this game for years. But now, on my iPhone 6 running iOS 9 it won't even boot up. I touch the icon, the screen flashes white for 1 second and that's it; I'm suddenly staring at my home screen. Didn't want to delete it but can't even use it. Too bad 'cause it was fun while it lasted.
Review by zbatiz on Caveman.