Kindly follow the below steps in order to share your subscription to multiple devices:
1. Please check the receipt of subscription to verify your Apple ID.
2. Go to Settings > iTunes & App Store and check if you are logged in with the same Apple ID.
3. If you are logged in with the same Apple ID, please check your internet connection and then restore your subscription.
Now,
1. Open the app.
2. Tap on Settings (the wheel icon on the home screen).
3. Tap on Restore Purchases (Just once). You may have to enter your Apple ID details again.
4. Wait till the pop up says, 'Your purchases have been restored.'
If you are still enable to restore then please reply/email us a copy of your purchase receipt at support@kidloland.com.