I think 30% is a fair price if you think of all the stuff that is provided. In my view thats mostly: 1: a payment gateway 2: Server structure I don't know HO

I think 30% is a fair price if you think of all the stuff that is provided. In my view thats mostly: 1: a payment gateway 2: Server structure I don't know HOW you could afford a standard like this when you sell your app for 1 Dollar ...