I need an IOS Mobile APP developed

General information for the app: The App Is about Nightclubs / Nightlife and connects people who want to visit nightclubs with people who work in nightclubs ( promoters )
Kind of development: New app from scratch
Description of requirements/features: I'm looking for mobile development freelancers or companies specialised on iOS native development able to build my app project.

I need an app built that is about nightlife.

Location - The app will be launched in Miami and London.

The app helps connect people who like to visit and enjoy nightclubs with promoters at different nightclubs.

A promoter is somebody who works at a nightclub and their job is to bring people into the nightclub and promote that nightclub.

The app has 2 users - User 1 = promoter seeking guests User 2 = guest seeking nightclub

There is a chat system on the app User 1 can chat to User 2.

I need a CMS admin system developed to allow for simple changes to the app.

The app needs to be efficient with IOS 9

The front end of the app is completely finished we need the back end developed and the front end implemented into the back end.

I need this app completed in 4

These are the features that I want in my project:

- Includes image or video uploading to a gallery.

- Enable a chat service inside the app.

- Software needs to have access to phone GPS for geolocalization purposes.

- A functionality to share content on Social Networks is required.

- Sign Up/Log In using Social Network profiles such as Facebook, Twitter, LinkedIn, Google+...

- User must have the option of creating own profile by adding interests, pictures, etc.

- Admin panel to manage users and informations is required.

- Developer must provide graphic design as well.

4 weeks max.

Extra notes: I need someone who is willing to work quickly and efficiently and I need a developer with amazing communication skills. You must be able to communicate progress to me at least once a day via email or skype.