Ask HN: Payment forms for static websites

I'm looking at some quick options to add several payment forms to my side project, a static website. The idea is to later use AWS Lambda and Stripe if payments start trickling in.

I know Typeform is one of the more popular options, but they're expensive at €30/mo. Wufoo are at $39/mo.

I've come across Cognito Forms[1] and they take 1% of the payment value which is the best option money-wise. But I've never heard of them. Have you used them before?

[1] https://www.cognitoforms.com/