This might have some of your answers: http://www.forbes.com/sites/chuckjones/2013/03/31/apps-with-in-app-purchase-generate-the-highest-revenue/ http://www.forbe

This might have some of your answers: http://www.forbes.com/sites/chuckjones/2013/03/31/apps-with-in-app-purchase-generate-the-highest-revenue/ http://www.forbes.com/sites/chuckjones/2013/03/31/apps-with-...