A custom iOS/Android app for museum tours built with a content management system. - repost

We are a startup that is creating a mobile application for museums to share multimedia tours with their visitors. Our goal is to replace antiquated audio tours at museums, and we would use our website's online template for museums to automatically fill out their tour/exhibit information. We would also need assistance with a payment system, as museums will set prices for the tours, visitors would "buy' as an in app purchase, and then we would have to split the revenue. Essentially, it is a container app for different museums and their tours.