If you have a monthly or annual subscription and want to change to the other one (in the event that it's available), you can do so easily on the purchases settings page:
- Navigate to the purchases settings page.
- Head to your subscription section and locate the title .
- Click the Switch to Annual Billing link underneath your subscription.
- You'll see an alert to confirm. Click Okay Let's Do It to confirm.
You will be charged the new rate on the next monthly billing cycle for your account.