A usage based subscription gives x amount of class or appointment credits per billing cycle.
Examples include:
5 class credits a month
5 appointment credits a month
5 class credits a month & 5 appointment credits a month
10 credits that can be used on either classes or appointments (combined usage)
To set one up, click Memberships > Subscriptions and Packs > Add new
Name it
Choose the duration setting (the billing duration at which it will repeat).
Under usage limit settings toggle on 'this subscription has a usage limit' > choose how many class credits the customer will get per billing cycle.
Below, you'll find a toggle that allows you to separate the usage limit interval from the renewal. (ie. if you have one month as the renewal, and you have a total of 12 credits given per month, separating the usage limit from the renewal will allow you to give 3 credits every week instead of 12 a month).
Below that, make sure to toggle on 'this subscription Auto-renewals'.
As always, make sure this subscription includes access only to the things you'd like it to.