Which language is used to make a app like shareit?

Question

Which language is used to make an app like share it?
A file-sharing app with no internet is used

Answer 1

If it's a mobile app on android, it is very likely it was made in Java or Kotlin, although there are other options too.
You can never really know for sure, unless you ask the developers themselves, but they may not tell you their secrets ;)

Answer 2

Probably Java or Kotlin. But sometimes several languages used to make an app. You should search on google.