I learned c,c++ ,kotlin, html . Now i want to make any app. How to make app .

Answer 1

Search on Google and YouTube there are lot info

Answer 2

learn a GUI, for C++, I suggest QT. but you can look other GUIs for other languages on the internet except HTML.

Answer 3

to program android applications, I advise you to learn Kotlin, but first start java. I recommend the program android studio, intellij IDEA

Answer 4

https://developer.android.com/studio