As mobile commerce increases, so does the need for mobile coupons. U.S. smartphone users using mobile coupons has increased dramatically – from million in 2010 to and by that number is expected to surge to million.
93 percent of the top 100 grossing iPhone apps use in-app commerce. Of those 100 grossing apps, two-thirds are free. Read more: http://www.businessinsider.com/chart-of-the-day-in-app-purchasing-is-driving-mobile-app-revenue-2012-8#ixzz22wdHEpJ9 chart of the day, in-app purchasing is driving mobile app revenue, aug 2012