The Rails Composer tool now offers a choice of Stripe or Recurly when you choose to generate a membership/subscription/saas application. There's a "crazy deep" (as @peterc likes to say) tutorial for each version.
Comparing Stripe and Recurly: It's faster to get going with Stripe (no merchant account required) but Recurly appears to offer more automated customer retention features (no need to implement webhooks to send dunning emails).
I am using the Stripe version of this app with an app I am building at the moment.
RailsAppComposer has become an integral part of my toolchain. Can't speak highly enough of it.