This App (preloaded to your iOS device) automatically saves in-game progress, also allowing you to access save-game data on multiple devices. 

Game centre only supports one game per account! 

Attempting to save more than one game to your Game Centre account will result in lost data! 

To connect, please follow these steps: 

• Entre device settings, find and select Game Centre 
• Tap on your apple ID 
• If you already have an account, go ahead and log in. If not, make yourself and Apple ID. (Follow steps on your Apple device)
• Launch Game Centre from your home screen
• Find the game icon, and select it, launching the game from within game Centre

After loading, you should be prompted with a message reading "welcome back ... your ID/Name" 

Simple, you have ensured that your restaurant is safe from progress loss.