What language do I need to learn to become an app designer

Question

I want to know the essential languages I should learn first, before creating an application

Answer 1

If you want to make web apps or become a web app developer, you should learn Html, Css and Js

If you want to become an android developer, you should learn Java OR Kotlin

If you want to become an ios app developer, you should learn Swift

I hope this helps

Answer 2

Learn JavaScript then go for react as it's fir both web and mobile too. Just a suggestion