You can follow below steps to cancel or renew subscription plan.
1. After login your account on Foxit website https://www.foxit.com/ , go to Orders
2. Choose Subscription under Orders, you are able to find current active subscription plans,
click on cancel button under subscription plans to cancel subscription plans.
3. Select Yes to confirm your change, then auto renewal of your subscription plan has been ended.
Notes: After you cancel your subscription, the application will continue to be active until the expiration date. And your next payment for your subscription plan will be canceled.