Yes sure I can help you in this Chat App as I have done similar work in past as per your business needs please message me so that we will have detail discussion regarding the App as well as features that you need on App as well as backend side.
We are IT company deals 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, React Native, Unity 3d, Android SDK, ADT Plugin, Java Programming, JSON, XML, flutter, Utility APIs, MySQL and SQL server database, super level UI design and much more.
PLEASE REVERT ME SO THAT WE COULD START ASAP.
Regards