Works well, but

Im not going to hold it against the ppl saying this app doesnt work, they just dont know what high dynamic range photography is or where its applicable, but I assure you that this does in fact take two pictures, one over exposed for the shadows and another under exposed for the highlights, then combines the two to bring out the best of both worlds. This app is faster than the other HDR apps Ive used as well, so I do like those aspects, but...

When you take a picture with the iPhones camera, the picture is just saved to the camera roll and if you dont want it you can delete it later, if this app had an option to just save all HDR pics automatically I would use it and like it a lot more, instead you have to tell it you want to save each picture, frustrating when you end up losing pictures because you forget to actually save or your finger bumps the camera button.

TonyDeCo about HDR, v1.0