Just follow simple steps below:-
1) Download Lucky patcher from the link given at the bottom of this tip
Now you can use several ways.
(Apply Method 3 described below to increase your chance of success)
1)Open Lucky patcher apk and grant root access.
2)Now minimize or close Lucky patcher and open the app in which you want to hack in app purchases.
3)Go to purchase section and click on buy or anything that is written in your app.
4)Now the lucky patcher's window opens itself instead of google in app purchase box. In that window you will see "Do you want to try to get this app for free" as shown in screen shots below and Select "yes". Non-rooted user Click on "send reply to application(Unsigned).
5)Done. Now you hacked the In app purchase successfully. If the app is supported, then the thing you are trying to download starts downloading or the feature you want Unlock will be unlocked.
Since this feature is automatically enabled when you install lucky patcher, you can disable it if you want. To disable please follow below steps:-
1)open lucky patcher and go to toolbox at bottom left corner.
2)Select 'Disable google Billing emulation'.
1)Open lucky patcher apk and find the app you want to hack in app purchase.
2)If in app purchases are available, you will "In app purchases found" below the app.
3)Long click on the app or just tap on the app and click on "open menu of patches".
4)Select "Support patch for In app and LVL emulation.
5)Select apply, wait until it finishes and reboot.
If your patch was successful, you won't see google in app emulation window any more, that used to come when you select to buy something. You can buy anything for free.
Method 3 (Helping step for Method 1):-
1)Open Lucky patcher apk and find Google play store.
2)Tap on it and select "open menu of patches"
3)You will see a warning window saying "It is a system app ....", select ok.
4)Tap on "Custom pach" and select the first one "support.Inapp.LVL.android.vending" and tap apply.
5)Reboot your device.
6)Now use method 1.:-
So, This method is actually a helping step for Method 1. Applying custom patch to google play store will increase your chance of success.
Download link: http://q.gs/8629795/http://apkdownloads.wap-ka.com/software/view/31471249