You have an application that is action-packed with content and features, yet you are confused as the users do not engage as intended? Bummer! Looks like your user interface is poorly designed, and you are wasting your advertising dollars driving the traffic to it. Keeping the user focused to a task at hand requires careful planning a lot of research and a very, very, very intuitive interface design.
Perhaps it's time to hire a professional UI Engineer to do the work. If not, then remember this: Affordance, Usability, Consistency, Error Handling...
Know thy user!