To check back the version of the game you are currently running on your device:
- On the Home screen of your device, locate and tap the icon with an image of a gear ('Settings').
- Scroll the menu down, find and tap on the 'General' menu item (with the same gear icon).
- Tap on iPhone Storage, scroll down to the lower section to find the apps.
- Find the app and tap on it, the app version number will be next to its icon.