You can transfer, save, and sync your progress using online save options available on all Android and iOS devices. 

  1. Go to the game Settings on the device with the progress you want to save or transfer. Let’s call this 'Device A'.
  2. Connect to online save options on this device using your Google Play Games, Apple Game Center, or Facebook account.
  3. Before you start the tutorial, go to the game Settings (upper right corner of the screen) on the other device you want to transfer your progress to. Let’s call this 'Device B'.
  4. Connect to Online Save on this device. Ensure that 'Device B' is logged in to the same Google, Game Center, or Facebook account you used to save your progress with 'Device A'.

It is, unfortunately, not possible to restore permanent in-app purchases across device platforms (i.e. from iOS to Android). Please be sure you are logged in with the same account the purchase was made on.

Note: Facebook is a preferable choice to keep your progress saved.