With the economy growing at a 2.3 percent annual rate since 2009, we're all still struggling to make ends meet and survive on our regular 9 to 5s. Living in hard times has only encouraged most Amercians to take on second jobs, or as we label them, side hustles. Thanks to the boom in mobile app development, numerous companies have created programs that allow users to earn some extra coin based on different services and tasks. Now granted these apps aren't made to replace your full-time careers, they're sufficient moneymakers to help you score the new iPad Air, latest Jordans, or even a monthly MetroCard. So whether you're renting apartment space, selling personal items, or taking on other people's chores, earn some cash doing so by testing these side hustle apps.