Write an iPhone application

Looking for an app developer to create an app with me. Very similar to Tinder in design and functionality, but with a few differences. This app needs to allow people to be able to connect to user's facebooks and create very basic profiles (3-5 pictures and a short bio). It then needs to find other people who have the app nearby and give them the option to accept or deny them anonymously. If two people accept each other, the app then needs to suggest phone call times for the two users to engage. When both parties have accepted, the app needs to automatically initiate a call between the two users. This call will be timed to 10 minutes and the app needs to alert the users when their time is running out at the 5 minute and 1 minute mark. At any point in the conversation and at the end of the ten minutes when the phone call automatically ends, the app needs to give both parties the option to send the other person their phone number for future communication. Users can accept and deny as many users as they want, whenever they want. All the best, Ted