A year paid once lets you pay once for a whole year, with no free days, no renewal and nothing to cancel. Your year starts when you pay and lasts 365 days.
The price is shown per day for a whole year, paid once. You see the total in your basket before you pay.
This option works with payment methods that do not allow recurring payments. You can find it on the page for a year paid once.
When your year ends, nothing is charged again. You can pay once for another year or start your plan.