You love your island, we know it!
And that would be a bummer if you lost all of your hard-earned progress.
Here's how you can ensure that you don't lose your game progress:
1. Open Settings
2. Go to Accounts
3. Pick between Facebook or Apple ID and proceed by tapping on the respective button and logging in to your account.
Here you go! Now your account is saved, and you can log into your game using one of the accounts above from a new device or in case you lost your progress on your current device.