Mobile iphone

I am in need of a mobile iPhone app that is focused on social networking and includes location-based services. I do not have existing designs or wireframes for the app, so I will require assistance with design. The app should have the following features:
– Location-based services that allow users to connect with others nearby
– In-app messaging for communication between users
– Photo and video sharing capabilities to enhance the social networking experience
I am looking for a developer with experience in mobile app development, particularly with iOS and social networking apps. Strong skills in UI/UX design and incorporating location-based services are also key.