When you watch the videos for the Watch and Win games, some of them end with no way to close them. You can try to click the upper right icon, which looks like an arrow pointing right, but nothing happens. If you click anywhere else, you are taking to the App Store for that app. This seems to especially happen on Skillz apps, like solitaire cube, but not exclusively. iOS. I often navigate away, and then come back to get in the game, but sometimes I need to reboot.