Which language do I learn to build app on both Android and ios

Answer 1

React native, flutter etc.

Answer 2

You can use python kivy
Or for c# and visual basic xamarin
And for ....
You can build it by any language you know but if you want to start i suggest you to learn python

Answer 3

iOS applications are written in Swift or Objective C, while Android apps are written in Java. There may be some language converters somewhere that offers a conversion between the two, but there are enough architectural differences between the two platforms to make conversion meaningless.

That said, swift and java are both object oriented languages that offer similar features. Your best solution is to develop your core functionality in a way that makes conversion from one to the other simple.

Answer 4

If you know JavaScript then you can start learning React Native directly ( by Facebook ) to create apps on both platform Android and IOS simultaneously.

But if you don't know JavaScript then you can go with Flutter + Dart language ( by Google ) to create apps on both platform Android and IOS simultaneously.

Related videos:
https://youtu.be/frEG8f0Aa1c
https://youtu.be/jE5W89GslX8

Free course for learning Android development with Kotlin by Google :
https://www.udacity.com/course/developing-android-apps-with-kotlin--ud9012

Happy Coding 😊