Pocket Light Meter is a special app that allows users to monitor the amount of light in an area using their Smartphone. This is a real bonus for people who regularly use their iPhone to take photographs as the app will instantly notify them whether or not flash needs to be used and other ways to adapt their photographs according to the amount of light. However, it should be noted that Pocket Light Meter is only available through the Apple store and Android users will need to search for another light monitoring alternative.