MPro App is specially for Monochrome Photograph. Has been designed to capture high-quality black and white photography. MPro is a very popular app for iPhonephotography and it has just been updated for iOS 6 support and also include a Photo Viewer tool too.
This is a free update, if you have previously downloaded this app. If not, you can download it here. It retails for $1.99/£1.49/download.