I created an app that needs some improvements. My app calculates weight and balance of different airplanes. I created 15 different apps that each one is for a specific airplane. Apple rejected all of them because they say that all of them looks the same and I should create one app that will include all of them. I need someone to merge all these apps and add a main screen that from there the user will be able to navigate into different airplanes (right now apps). Everything is ready I just don't know how to merge these into one app. The app as itself is not complicated and I can explain it to you in 2 min.