Software/app development

Question

So I have been doing a lot of research and its really difficult to choose a framework one can start working with while thinking about the future .So am really curious to know the frameworks or libraries which an app like sololearn or khan academy was built with .Am seeking advice from experienced app developers or anyone with a good answer.Maybe sololearn devs can answer the question.

Answer 1

Android apps are made using java
IOS apps are made using swift and objective c.
But remember that you need a mac to create ios apps.