Divide below OS 4.4 and iOS 11 will not be supported in the future.

So, if you're using that version or less, it's hard to play anymore without Android or IOS being updated.

For stable gameplay, we recommend you to use it on OS 4 and iOS 11 or higher devices.

If not, could you send me an inquiry via this email support@moonpear.net ? And could you tell us your device name, OS/ iOS version, and your app version? (ex: iPhone 11, iOS 13.4.1, 21.1209.00).

For Android user, you can check OS version by following the steps below:

1. Access to Settings on the device.
2. Click 'System'.
3. Click 'About tablet' (it may differ).
4. There will be an 'Android version' (example. 8.1.0).

For Apple user, you can check your iOS version by following the steps below:

1. Access to Settings on the device.
2. Click 'General'.
3. Click 'About' and the iOS version is right on the second row.