How to make very powerful application like sololearn in low size as it about 5 mb and have ahuge features ?

Question

i mean gow to make same mobile , web app that are compatible with each other what o need to learn or specialy what is used in sololearn website and app

Answer 1

Major organization use a technology or more precisely a formula called big pipe that makes web browsing or app loading very fast. You can search for many tutorial for Java( Android apps like sololearn are developed in Java) or Python that can really help selling the effect of big pipe.