Im only giving this a 1 star due a bug it that should be easily fixable. After completing a round successfully or failed there is a blank dialogue box that appears over the game screen. This screen can not be closed and will not allow me to use any buttons. My only option is to shutdown the application and then reopen the app and continue from where I left off. Its been occurring for a very long time, but with iOS 10 could I finally see the screen. Hopefully you can find a solution and send out an update. With this fix I would rate the game a 5 star.