HeatSpring Membership can be cancelled easily online anytime in just 3 clicks. Just log into your account at https://heatspring.com/account then click the blue "View Subscription Details" link next to your membership subscription. Then click the blue "Request Cancellation" link then the "Cancel Subscription" button.
You will receive an email confirmation that your subsription has been cancelled. Your HeatSpring Membership will remain active until the end of your current period.
You can reactivate your subscription anytime in the future and continue where you left off, however HeatSpring Membership pricing is subject to chage without without an active subscription.