The way you can cancel your subscription will be different depending on your plan.
Please refer to the following details for respective cases.
You don't need to do anything to cancel your subscription.
When your term is over, the subscription expires automatically. Please note that you cannot suspend the subscription.
Please cancel your rolling subscription from the Account Settings page ( https://iknow.jp/account/edit ) by clicking "Cancel subscription" in the iKnow! Pro Member area.
You can continue to study until the expiry date even if you cancel your subscription in the middle of the month.
Please note that no refund will be made after a plan has been paid for.
Your study data will not be deleted even when you cancel your iKnow! Pro Membership. When you sign up again, you can resume your study from where you left off.