Your game progress on Android OS devices can be saved by linking to your Google Play account.
 
If your device does not support Google Play services, your game progress will only be saved on the device and will be lost if you reinstall the game or reset the device to its factory default settings.
 
If your device does not support Google Play services and you would like to restore or transfer your game progress to a new device, please contact our support team via Help button in the game settings.