Great launch! This looks similar to www.raaft.io which has been around for a couple of years and supports Recurly in addition to Stripe. How do you differentiate? I think we would have used something like this (instead of rolling our own) if it integrated with Chargify.
We'd love to integrate with more payment providers, and Chargify is definitely on the list. If you'd be interested in helping us get a Chargify integration going, I'd love if you'd send me an email (address in profile)!