How to be a Mobile Apps Developer ?

Question

I want to develop apps that run on all mobile phones OS (Android, iOS, ...etc)
Is there a track for that or not?
And what is it?

Answer 1

You could download the Xamarin extension for Visual Studio. It uses C# and can create apps for the devices you listed.

Answer 2

@Bagshot
Have you learned Xamarin?

Answer 3

it's a different platform, different language.. their specific.. you can't develope Android apps for iOS, and vice versa.. for Android you can use Android studio (java programming language), and for iOS use xcode (swift programming language)..