Of course you can take black and white photos with your iPhone but the app, Camera Noir ($2) takes that to a whole new level. Camera Noir will give your B&W photos that perfect look and feel. The app is extremely simple to use, while providing you with a bevy of features. It has a horizon line that turns green to show that you’re level, three brightness adjustments, and square crop marks for Instagram. You can even import your older photos into the app and share everything on any of your favorite social networks.