You can cancel your subscription anytime. Just access your Account page in Nelio A/B Testing:

Once there, the first box contains information about your subscription to Nelio A/B Testing. By clicking on Cancel Subscription* your subscription will be automatically canceled.
Nevertheless, you’ll be able to continue using Nelio A/B testing until its expiration date. For example, if you purchased a monthly subscription, and then choose to cancel it, the subscription will remain active until the end of the current month period.
At the end of the subscription period, your premium version will be deactivated. In your site you will have the free version of the plugin (with 500 tested page views) with all the results of the tests previously performed available.
And of course, you can also change your mind and reactivate your subscription from this same page, before it is completely deactivated at the end of the current period.
* Please, note that if you subscribed before January 15th, 2020, you may not see the cancel button in your Account Information. In that case, you can cancel your subscription directly by accessing your Subscription Account Settings, which you may find in the subscription confirmation mail we sent right after you subscribed to any of our plans. Otherwise, please, contact us by email at support@neliosoftware.com and we will help you with your demand.