There isn't a single system out there that I have tried besides shopify Recharge ($400/m) and Woocommerce with Wordpress (absolutely awful configurations) that doesn't do multiple subscriptions, with different billing intervals in check-out. Im assuming this is a development challenge because damn near no one, even the big ones (Squarespace, Odoo etc) can even do this out of the box. I really like Subblys webhooks and embed features, including their website tool. But there is no point if I cant do multiple subscriptions with different billing intervals.

I am actually gobsmacked that a solution like Subbly doesn't have this as a 'feature' - this is ecomm 1-0-1 folks. If the customer wants to buy more make it as easy as possible. This turns me off Subbly as the solution for us. (background: we are a toy business and we have a lot of customers buying multiples of the exact same box for their children so they don't fight)

Thanks Suzi, it would be amazing - right now we are managing it all through a custom survey but that makes order stock, and customers needing to change from 1 - 2 products a nightmare!

Yes please, this is a huge missing feature for selling to parents who have multiple kids or pets, where the subscription boxes are different for different size kids and pets - or different internals.