Hi all. I made a iPhone camera app. It works well as a stand-alone app. My camera app is used specially for sports game. It should be installed at a place where it is hard to frequently access, like at the tip of a long pole or at the top of the wall. Thus, I made another iPad program, which is used to monitor the camera app's screen and also control the app and also download the recorded frames from iPhone app. I submitted iPad app and it was rejected. The rejection reason was Guideline 4.2.3 - Design - Minimum Functionality We were required to install XXX (my iPhone camera app) before we could use your app. Apps should be able to run on launch, without requiring additional apps to be installed. How can a controller app work without an additional app? It is like a car remote key has its own functionality. Actually a car remote key is useless without a car itself. Is there anyone who experienced similar tragedy? Then please advise me what I have to do. I may add some stand-alone feature in the iPad controller app. But it may mislead both the users and app store reviewers. Also it will make the app worse. I am really reluctant to do that.