Which exact tecnology to use for a web with mobile apps realtime project?

Question

We were planning to develop a realtime project in which features like call, chat, and video calls are there between customers and vendors and charged per minute from customers as per call/chat rate of vendors. Which technology from the latest one we will use that is best for a web application? Also, app will also be there for this same project so, what will be best for android and iPhone? so that in future we not have to feel that the chosen language/technology is outdated or can't handle our project.

Answer 1

I hope I understand your question correctly, but I think you are asking for existing technologies which can be utilized to built a web-app at first and later in native mobile apps?

If so, there are two approaches:

Everything from scratch

Familiarize yourself with protocols like webSocket and webRTC, push notifications and probably PWA & TWA architecture. You will find some libraries like jsSIP that can help you develop. Server-structure and scalability will be a complex topic for such applications.

Use specialized services

There are services like Twilio or Signal you can utilize for your app. They have pretty solid SDKs you can easily integrate into web applications as well as native mobile apps.

The project itself:

It sounds like your project is quite interesting and I would like to hear more about it, should you want to share.