The iPhone’s camera is already pretty strong for a smartphone camera but what if you need it to do more? Luckily for you, The Guardian this month asked Dan Rubin, editor-at-large at the Photographic Journal, to make a video showing off the iOS apps you need to turn your iPhone into a professional-grade camera and take absolutely stunning pictures. Below you’ll find a list of Rubin’s six favorites along with descriptions of what they do as well as pricing information. Average Camera Pro Average Camera Pro ($0.99) is an amazing app that you can use to take pictures with long exposures, which is something that you’ve never been able to do with the iPhone’s vanilla camera. The app programs your camera to snap multiple pictures