[brunosutic]

> I would consider monthly Enterprise & yearly Enterprise the same plan, with modified cost & billing frequency.

How would you then call the objects that store costs and billing frequency? :)

Here's what Stripe uses:

- Product: "describes the goods or services". This is where you define a (plan) name and features.

- Price: defines the amount, currency, and (optional) billing interval. Since interval is optional, Prices can be used to define both recurring, and one-off purchases.

Technically, using Prices for recurring, and one-off payments is a brilliant idea. The problem is, no one refers to recurring payments as "prices". Everyone calls a "$50 per year" option a "plan".