Best advertiser for earn money with ad banner?

[vknow360 (Sunny Gupta)]

Are you sure?
https://stackoverflow.com/questions/31947763/does-admob-pay-for-imressions-or-only-for-clicks

After few searches in community you will find this:

In app billing for eCommerce app

Hi guys how do i use the in app billing anyone done it with some blocks to show on how to use it? i have view some topics but they are not very helpful