Hi! I would love to help you with this project. I am an IOS developer and UI/UX designer from Sweden. My speciality is developing apps from the ground upp with my own backends and APIs. I do all my applications universal if requested, that means that they are developed for both iPhone and iPad.
What kind of web services will you provide? I actually did a payment gateway for another project just a week ago, I have also worked with both the google API and Facebook API. Please get in touch with me so we can discuss more.
Best regards, Pontus Jacobsson.