During Game Playing
- Can I backup my game data to a different device or OS?
You can transfer your game data from [Options] > [Change Devices]. The transfer data is effective to another OS, and Stores (AppStore, GooglePlay).
To transfer your game data you need the "User ID", "Migration ID" and "Password". You have to set up "Password" in the app of your current device before you can transfer your game data to another device.
Since the device change feature allows you to put game data on any device, including your current one, we recommend you setup a password beforehand in case you accidentally uninstall the app.