iPhone App Needed

we would need to use the iphone Apple Accessory Communication Protocols(AACP). We would then implement a custom communication protocol (Apple readymade protocol support only Audio and Video), that would then communicate over AACP. What we have is a finger print module (external extension) direct dock onto iphone. The module itself has CPU and sensor to process the finger print. All we need is to have an intuitive iphone app that user can use and interact with the module.