A physics puzzle game by Bouland Games
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On Android, make sure you are signed in with the same Google account you used to make the purchase. On iOS, go to the in-app store within the game and tap "Restore Purchases".
Try closing the app completely and reopening it. If the issue persists, make sure you have the latest version installed from the app store. You can also try restarting your device.
You can remove ads by purchasing the ad-free option available in the in-app store.
Your progress is saved locally on your device. Uninstalling the app will remove your saved progress.