Check this image you get an clear idea about build app like whatsapp.. For more click this link : https://blog.contus.com/how-whatsapp-works-technically-and-how-to-build-an-app-similar-to-it/
Check this image you get an clear idea about build app like whatsapp.. For more click this link : https://blog.contus.com/how-whatsapp-works-technically-and-how-to-build-an-app-similar-to-it/
RE: How to Create a Real Time Chat App Like Whatsapp