Several android apps having in app purchases means
"BUYING COINS WHILE PLAYING GAMES,UNLOCKING ALL LEVELS OF THE
GAMES"etc....
These purches are hacked by using an app.the app is "Freedom"
Note : ROOT is nessasary Download app from these link system.in-appstore.com/
freedom/ freedom-1.0.6.apk Open the app and give permission for root access.
Wait until it loading the apps
1.Select any app that you want to hack
2.wait some time and the app will is opened
3.select which you want to buy from that app
4.the google play services shows some cost.
5.click to buy.
6.the google play store shows payment is success without paying anything.