APP AD is social appstore for you can earn a new concept. Really can I earn cash when download application? The application of smartphones introduction, it receives the cash switchover PB to earn you a new concept in social appstore. * PB-Pay Back- stands APP AD in cash switchover point. (PB 1 WON = cash 1 WON) and, in the app ad Smartphone applications various referral information to take advantage of many through the Smartphone. In addition to this, earn AdSense ads in the app market watch ads through the useful information and more easily, you can earn even PB.