If for some reason you deleted the app or changed devices you can retrieve your purchased app by following the steps below:
1. Find Appstore on your device.
2. In the bottom right corner select updates. Once that pops up select Purchased at the top.
3. Scroll down to your Skip Bo app. Select the cloud on the right to automatically start downloading your app to your device. Once completed it will say "Open" and you can either select it or you will find Skip Bo on your device again.