To cancel your GlucoseZone subscription: Log into www.glucosezone.com and go the "My Account" section of the GlucoseZone menu button. Select "My Subscription", then hit Cancel. Your GlucoseZone account will be canceled.
Please note, if you subscribed to GlucoseZone using Apple pay or Google Pay, you may need to cancel your subscription to GlucoseZone in the App settings of your device. Go to the Settings of your Device, and find the active subscriptions. Select the GlucoseZone subscription and cancel.