This app is meant to inject some group dynamics to the shopping process by adding an element of gamification. A store offers a voucher, the value of which depends on the number of Facebook-friends physically present in the store. All friends must be logged on to Facebook and have the “Shopping with Friends” app installed. To receive the voucher, everybody has to tap and hold a button for a certain period of time. No information that is kept on Facebook will be transferred to the store!