This actually works. This is simple technology found on all picture programs. The photo eg. shown at the end of the app info is exactly the result you will get. Once you select the photo that you want to brighten, it will give you 9 mini thumbs of that pic with the last one being the brightest. I admit that you really cant see the difference between the thumbs themselves - I had to play around with it to figure that the last thumb is signicantly brighter than the original pic. This is a must have for the very simple camera in the iPhone.
J-Carlson about Flash for Free – Best Photo Editor with Flash & Awesome FX Effects