Author

The game stores game progress and settings locally on your device.

3rd party services

Game engine

The game uses Unity 3D. This engine collect some device statistics and user location based on IP address.

More info: https://unity3d.com/legal/privacy-policy
In FAQ: I play a game built with Unity software, what should I know?

Leaderboards

The game uses Google Play Services to store player’s scores.
Players’s activity is shared to other players only if player allows it in Play Games settings.