Missing from this analysis is which options are available outside the US. I've tried to quicky figure this out for each provider, please correct me if I'm wrong:
- Braintree: only if doing 3 million+/year.
- Chargify: in theory yes, if you can find a merchant provider that accepts you with reasonable terms, which isn't easy.
- Recurly: "Recurly supports SagePay and PayPal in the U.K. and Ireland, as well as Wirecard throughout the broader European Union."
- Saasy: Yes.
- Strip: Not yet.
Although it makes sense to start in the US market, it's getting to the point where all most alternatives are US-centric, and there's a big world of us out here that would also love better payment gateways!