Monthly and annual include the same Premium access. The billing period is the difference.
Monthly is $9 and bills every month. You can cancel anytime and you'll keep your access until the end of the current billing cycle.
Annual is $79 and bills once a year. That is about $6.58 per month when averaged across a year. Checkout shows the renewal amount before purchase. If the standard price changes later, we will give the notice required by the Terms and applicable law.
If you want to change plans later, open your billing settings. The app will show the available change and its effective date before you confirm. We do not promise automatic proration; the exact treatment depends on where you bought the subscription and what that billing provider shows.
If you cancel an annual plan partway through, you keep your access until the end of the year you already paid for. We don't refund the unused portion (see refund policy for how charges are handled), but we don't claw back anything either.