Just crossed upon your question: The answer is the Utiful app. It’s made to easily organize photos into folders straight on your iPhone and then dump them anytime you want to your computer. And, it lets you MOVE (not just copy) photos into the Utiful folders, so you not only organize but also clear the Camera Roll.

What I did on my last two long flights was to put order in my iPhone’s mobile photo collection. This was only possible thanks to the Utiful app. Why that? Well, every iOS user knows the frustrating fact that Apple’s Photos app can only duplicate photos from the Camera Roll to albums but never move. You’re forced to…