I can't find any of the "before" images, though I clicked through and around his site, watched his videos, and googled for images (of course, people want to show off their "after" images, not the "before"). I guess they are just ordinary photos, but it would be nice to see what the app actually does - that would be much more compelling than seeing how you can change colours etc.

lesson: optimizing every little thing won't make you fail if the important things are basically right. This looks amazing and was 99 cents (now $1.99).