Hello sir,
I'm a passionate iOS programmer with more than two years of experience by now. I'm excellent at writing clean and organized code.
In the past I've worked at tweaking many apps that were already coded by other people, so I am familiar with understanding other people's code. I've also mastered using asynchronous code to make the app more fluid and it seems to me from your description that this could be the thing you are missing in the app.
Furthermore, I've been to the process of submitting an app to iTunes many times before, so that won't pose any problems.
Can you tell me more about the app?
With kind regards,
Stefan