Which Programming Language

[AmirQ]

Hi there,

I need your help!
I wanna create an App that include two parts:
part1: client side (a software on Windows & Android)
part2: server side.

Which programing language should I pick?
(Consider that I need some security for the app)



Thank you.

 

[noob at coding]

python,it is the best i am making my first app and python is helping me, I am just nine years old and it is still I don't think it is hard,python is the best, I am so happy I used python, i hope you can make your app