Directory enquiries <a href=" http://www.delfsail.nl/proextender-video-download.pptx ">proextender video</a> One mobile app called "GymPact" has found a novel way of making money off its consumers' data. The app lets people bet against one another as to whether they will go to the gym. The non-exercisers have to pay the exercisers, with GymPact taking a cut.