hello there,
As you are looking for an mobile app for chat and call communication between doctor and patient i have already develop 100% similar app as you need patient is able to search the nearby doctor and take the appointment to the doctor and doctor is able to either approve his booking or reject and patient get the notification, patient is able to chat , video consultation with doctor and pay online
and also provide you the admin panel from there you can mange complete app like add the new doctor , able to see all user details , total appointment , total earnings , and many more , and also add payment gateway from there you can get payment directly in your account
we have already develop so many app like taxi app, food delivery,doctor appointment booking,e-commerce app and many more
As per your project needs, we will do this work and assure you about the quality of the Work,
We have done 300+ project from 30+ countries. i am working on,PHP,HTML,CSS,NATIVE ANDROID & IOS app
please invite me on chat for further discuss
I am eagerly waiting for your positive response
Thanks & regards
Shubham