Memberships enable you to exchange any amount of content for a regular payment from your customers. This is an effective way to offer a multitude of content for a lower initial cost, since the cost of access can be spread over time.
To create a Membership visit Subscriptions > Plans and click New Subscription Plan. Each plan you create has a name, a price, an interval, an interval count, and a list of products included in that plan.
The Interval and Interval Count can be used to make any combination of payment terms. For example, a customer that subscribes to a plan with a Month interval and interval count of 3 will be charged every three months from the time of their first payment.