With this trick you can buy & download paid apps for Free from Google Play Store legally without rooting your android device. Ever wanted to buy a paid app for which you couldn't find a crack without spending hard cash ? Or wanted to go pro by paying for In-App Purchases? Now you can and believe me its free. Moreover it will be completely legal. All you have to do is to download an app called 'Whaff Rewards'. This app gives you real money for completing tasks such as downloading and trying apps. It also gives you money to keep those apps installed on your phone. Want to boost your credits ? Just invites some of your friends and you will earn high in few hours. After that you can redeem that money for Google Play Gift card, which can then be used to buy apps and make in app purchases. Want even more ? You can also transfer real money into your bank account via Paypal.