To cancel your subscription,
Click your avatar in the top right or access your settings page here: https://app.superphone.io/settings
Head over to "Billing Information"
Scroll toward the bottom to the "Subscriptions" panel
click "Manage" and choose 'Cancel Subscription'.
Be sure to export any data collected before cancelling the account. You will not be able to access this information once the account has been deactivated!