I can't remember exactly which APP I used for this. But when I figure it out I will add it to the post. I think it might be Sketchbook Pro or Brushes. If anyone out there knows which APP does this please let me know because I want to make more.
I was just playing around one evening a few months back and I was surprised to see the entire thing converted to a video. So I sent it via email to my computer. What fun!