Yes, you can cancel your Challenge subscription at any time, however please do keep in mind that refunds will not be provided. You will continue to have access to the 28 Day Weight Loss Challenge for the remainder of the period you have paid for.
For example, if you are on a monthly subscription and cancel one week into that month you will continue to have access to the app until the end of that subscription period.
To manage your membership, please log into the My Account section of our site and go to 'Subscriptions'.
Australian Customers: https://secure.healthymummy.com/my-account/
UK Customers: https://www.healthymummy.co.uk/my-account/subscriptions