I am an experienced, young iOS developer with 3+ years experience in Swift and Objective C. I have had experience with all of the criteria that you have specified and would love to know more about your project. I design professional, minimalistic and responsive iOS applications that incorporate subtle animations to add fluidity. I have worked on projects using Facebook, Twitter and Google Plus SDKs, as well as setting up my own log in/profile based apps using the Parse SDK. I'm still new to the site and so my reputation is rather lacking. However, I would really appreciate it if you could give me the opportunity to give you a prototype of the application, at no charge. Hopefully this will help you make your decision. Please contact me to discuss further details about your app and any questions you may have. Do take a look at my portfolio to see some of my previous work.