To make cancel your PhotoUp subscription, you can go to My Account > My Plan > Change Plan.
You can then choose "downgrade to an on-demand plan"
This will deactivate your current plan effective on the next month.
Please note that if you are on an annual subscription plan and cancel your account before the end of your 12 month term, you will be required to pay half the remaining balance on your account before you will be able to cancel your subscription.
Please reach out to support@photoup.net if you have any questions.