I am super excited that you can open a project in phosphorus.github.io, add to your iPad home screen, and use it like an app. I mean... How cool is that?
This studio is for projects that play well in phosphorus (some don't) and include instructions/splash screen/touch controls etc so they look like iPad apps.
***iPAD TIP: Sounds may not play when you run phosphorus in your browser. Add to the home screen, and sounds will play!***