How many times have you found yourself salvaging the last bar of energy on your smartphone trying to shoot out one last text message, email, or tweet? We're willing to that it happens almost every day. It's no secret that the faster and more powerful smartphones get, the weaker the battery life becomes. Both iPhone and Android (oh, and BlackBerry, we haven't forgotten you!) users are finding that their mobile powerhouses lose power faster than Tiger Woods around white women. Fortunately, we live in a time where mobile app developers are creating innovative programs to help users monitor battery performance and mange phone settings through one-touch functions and user-friendly interfaces. Get the best out of your smartphone with one of these battery-saving apps.