I am Christian Schlager, responsible for the game Christmas Pairs, available as an app in the google play store.
Christmas Pairs uses the advertisment network AdMob. AdMob is an advertising service provided by AdMob Google Inc.
Christmas Pairs does not collect any other personal information.
Google describes the information it collects and how it is used here: http://www.google.com/policies/privacy
I will not use the data collected by AdMob.