If you signed up for a free trial, you will not be charged for your use of the Service during the free trial period. You may cancel at any time during the free trial period to avoid any payments. To cancel your account, simply go to the Membership Details section in your Account Settings. You may also cancel by telephone at +1-888-664-0886 or by emailing Grokker at firstname.lastname@example.org. A cancellation will be effective immediately.
When your free trial is over, in order to provide continuous service, Grokker automatically renews all paid subscriptions for the Service (“Paid Subscriptions”) on a monthly or annual basis (“Subscription Fee”) in accordance with the billing terms you agreed to at the time you signed up. Your subscription will automatically renew at the beginning of each billing period until you cancel at any time by using any of the cancellation methods above. A cancellation will be effective on the next renewal date of your subscription following your notice of cancellation, and you may continue to use the Service until that time.
If you wish to cancel through the Apple App Store please find instructions here: