The service is available for a monthly fee, based on the number of active users that month. An active user is one that has any scheduling or billing activity that month. Your billing plan will be automatically chosen every month, so you pay only for what you use.
The service is available on a month-to-month basis with no contract lock-in. There are no startup fees.
Credit Card Transactions
If you collect customer payments online, either from the online store or from published invoices, then transaction fees may be deducted from received payments. These fees are according to the payment processor Stripe.