When I create a photo album on my iPhone (5s / iOS 7), the photos are copied from the Camera Roll to the album yet still remain in the Camera Roll. Along the same lines, if I delete a photo from the Camera Roll, it will also be deleted from its assigned album. Is there some sort of third party app that I can use either on my iPhone or my Mac to sort my Camera Roll photos into albums and actually have the photos moved to the album (without having to keep a copy in the Camera Roll)? In other words, I'd like to be able to create multiple albums, move the pictures from the Camera Roll into the albums, and have an empty Camera Roll when I'm done. Thanks for any advice!