Mobile development

I need an iPhone app. I would like it designed and built. Thank you for reviewing my project, as a graphic designer on freelancer, I'm currently looking for someone to design and build a small mobile app. The design is to be 2.0 standards, not something that looks like it was just pieced together. The logo will be done by myself The ideal colors are a radial gradient purple background fonts to be a combination of bold and sleek in the colors of yellow and white. The functionality will be simple. Allowing a user to register/login via Facebook login. They will need to allow the app to access their location. From there, they will see a map (similar to Google maps) showing nearby restaraunts, shopping etc. The user can choose to click on any of the Givin options and choose to "check-in". Now, what's to make this cool, is once a user has checked in to a place, an icon of a small bee will be displayed on the map, allowing ONLY there facebook friends to see that there friends are nearby using the app. This is simply about privacy of knowing your friends are close by, unlike facebook check-in is publicized to people you do not know. Looking forward to bids, and additional questions. Thank you.