As this game allows cloud saving, all copies of your game data are automatically saved on our server. If you change your device, you can go to "Options" >> "Restore your purchases" and download the last save from our server. Please note that this feature has been developed to ensure the safety of your game data, and it does not allow playing on several devices/accounts simultaneously. By trying to synchronize several accounts on multiple devices, you will definitely lose some data due to the nature of cloud saving.