At the bottom they lay out the charges. All of us can do the arithmetic, but their example works out to 6.4% of a $20 sale!<p>And of course once you back out the overhead and direct costs of selling, the amount of your potential profit that eats up is some multiple of that.<p>They charge 2.9% + $0.30, and then 2%.<p>Stripe charges 2.9% + $0.30.<p>So they are approximately 65-70% (2/2.9 = 0.69) more expensive, depending on your average charge.