Download something to write a very simple App for my mobile

[YourHelpIsGreat]

Hi,

In my computer, I want to write a very simple App for reminding in my mobile. The out put will be a string and a song. What I should download and install in my computer?

Thanks alot for your advice!

[camerongray]

Depends on what mobile OS you are running, each has it's own dedicated development environment.  For Android you would use Android Studio, for Windows Phone you would use Visual Studio and for iOS you would use XCode (Which would require an Apple computer).

[YourHelpIsGreat]

Dear camerongray,

That is an Android mobile pnone.

Thank you so much!