Cool product! Congrats on launching. I can think of several companies off the top of my head who should implement this yesterday. But I have to take issue with the price point. $3 a month? If you're doing it for fun, make it free. Otherwise, the price should be 10x if not 100x your current rate. Trust me, if someone is going to go through the effort of setting up your product, they'll be willing to pay more than $3 a month. At that price point you'd need 1,000 customers just to be ramen profitable!