How do I pay, change plan or cancel?

Owners do all of this on the Billing page. A plan is a monthly subscription, paid by card on Stripe's own secure page, so we never see your card details. You can switch to another plan at any time, and the difference for the rest of the month is worked out for you. You can cancel at any time, and it ends at the close of the month you have paid for. Your data is kept if you leave, and you can download it.