I have gone through your post and also read your information that you have provided in your project post. If you are looking for iPhone developer then we are the right company for you to solution of your project.
I have understood your requirement which is as below :
1 BS in Computer Science related field required
2 Experience in iOS development using Objective C, Cocoa and Xcode
3 Experience using REST-based web services and interpreting JSON data
4 Experience building, distributing and submitting iPhone and iPad apps
5 Experience with Apple Push Notification (APN) services desired
6 Experience with Apple's In-App Purchase environment desired
7 Excellent communication skills required
we have already developed many complex application for iphone as well as android.So We have enough experienced and professional to develop your desire application.
Please contact us as early as possible so that i can give you the our portfolio work.
Add me on skp--e-ye "bde2.techfreak" and bde2.techfreakdeveloper(at)g-mail(dot)com.
Awaiting for your positive reply.