Xcode IOS app for User Login registration Share location each other using Firebase registration system

Hi I need a complete functional IOS application. (It is simple application) Where Users will register by Name Phone Email and password, There will two types of Users, 1. general users, and 2. service user. General users can see real time location of Service users in radius 5 KM, or 10 KM. general user can send his location to service use, There will be a ring with accept and reject button on service user application interface( which one general user will select and call). If service user accept the request map will direct to general user location. Thats it. 1. When general user login he will see real time service user location on map in radius 2,4,5 KM with circle. [login to view URL] Service user login he will just see the map and there is progress bar writing finding client. [login to view URL] code will be complete open and free for me 3. DB and user authentication should be firebase Where I can change it in my own