Write an iPhone application

we have competition where viewers can register to be contestants the competition is 3 stages and each stage is 2 parts - quiz - view video and record audio with video sync then upload audio to backend normal viewers ( not registered ) can watch other contestants videos ( merged with their audio at back end ) and vote (similar to like in Facebook) what is needed is a Mobile app ( iOS - Android ) : - main page - General information - Top ranked contestants - Register page - form fields ( name , password , email , phone , ..... ), then the server will confirm email address - competition page ( only available to access for registered users ) - Stage 1 - Quiz - Record your Audio video player that play video file (mp4, should be local ),and while it plays the user can record his voice and playback then submit to backend - Stage 2 (same as Stage 1 with different content ) - Stage 3 (same as Stage 1 with different content ) Notes: - each user should connect to UID page generator to get UID from backend and use it in all communication to backend ex: .......[login to view URL] - all the server side logic is ready to be implemented . - mixPanel SDK should be implemented ( will provide project tokens privately ) - communication should be use JSON - if framework used then you have to clarify that before start working on the project - source files should be delivered in clean way ( no encryption ).