1. Tap your avatar in the top left of your screen to open your Profile;
  2. Tap the gear button to open the in-game settings;
  3. Choose your desired progress saving method — Google Play, Game Center, Apple ID, or Facebook — and tap the corresponding button.

If the settings window has a Disconnect button, that means your progress is already being saved. To avoid potential synchronization issues, we recommend only connecting your progress to one account.