Make Your Own App, I Just Did But I Am Not Sure Why

I stumbled upon this website that lets you create your own app.  I am not exactly sure why, but I am doing it. It walks you through each step and what to do.  My app is 'Kelly West Rock Chick'. To funny. So far I am at the playlist url and I am stuck.  I guess I am going to have to create an actual folder for my favorite kind of music so it will let me continue.

Create your own app to and let me know how it goes!