Hi
Can you Please share the website url so that I could check its feature list?
Also as website and backend is done on wordpress so I think you will have to make custom new backend as wordpress dont provide api facility . Please come to chat for further discussion.
We are IT company in Central India having 7+ years of experience and mastery in Mobile App and Web development, Mobile App and Web designing and backend.
We have knowledge of Android java(Android studio) , Xcode IDE(Swift), Android SDK, ADT Plugin, Java Programming, JSON api, XML, Codeigniter, Angular, laravel , MySQL database, UI design.
Please come to chat for further discussion and then we can start the work.
Regards
Logical SoftTech