As mobile purchasing becomes increasingly prevalent, online marketplaces need to offer apps that help both buyers and sellers. But which is better, a single app that facilitates both sides of the transaction? Or separate apps that are targeted to each role? And what happens when you have customers who transact on both sides of that equation? Panelists will debate the benefits to having apps that are all-in-one versus apps that are user-specific. And they will discuss development strategy for webapps, native apps and dueling platforms.