Where do I code do I use a app or do I need a software if so what software

Answer 1

Here , You can test your code in the code playground.

To get there ,

•Click on the double curly brackets '{ }' in the lower right corner.
•Then click on the plus sign in the green circle.
•Choose your language
•Happy Coding

Answer 2

If you are interested in the web developing and web design then you need one of the web editors there are many examples like "atom ,brackets, vs code ,notepad++".
If you're interesting in studying java so you need one of these programming environments
"Eclipse , apache netbeans" if you are interested in learning c,c++ you need "code blocks "
And so on it varies depending on your interest "

Answer 3

You can use an app to code. But depends on the language.
You can also get it online. Just search in Safari or Chrome or anything!