Hi sir
For this kind of App I want to tell you that i have worked on this before also for dating App as well as one chat App also worked on Twillio as well as Quickblox.
So please come to chat so that we will have quick technical understanding.
We are the IT company having 5+ years of experience in App and Web development, App and Web designing, backend, SEO/SMM cloud services, and enterprise solutions.
We have knowledge of Xcode IDE(Objective-C), Swift, Eclipse IDE, Android SDK, ADT Plugin, Java Programming, JSON, XML, Utility APIs, MySQL and SQL server database, super level UI design and much more.