[qvikr]

I was wondering why nobody had mentioned Chargebee here yet. If you're building a subscription business, I'd say this is the way to go. Unless you want to worry about managing recurring billings, maintaining legacy pricing tiers everytime you change your plans, one-off discounts, etc.

Just make sure you have a recurring billing system in place right from the start instead of hacking it on top of your gateway yourself. You should be able to focus on your product right now - not the billing, and the tech debt if you choose to move when the wheels are spinning is just not worth it.

[Source: Hacked a system in my last org and burnt fingers, before happily moving to Chargebee]