The data that we store on our servers is only used as a means to improve your gameplay experience. None of the data we store on our servers is sold to third-parties.
In order to track your gameplay data, we retrieve the user ID and the user name from Google Play or Apple Game Center. In addition, we store the make and model of your device and your IP address for geographical lookup.
Our free applications use advertising currently provided by Admob and anonymous statistical information is reported to them so they can gauge effectiveness of advertising.