Log in to your account.
Then, click settings and go down to account information (https://loseit.com/#Settings:Account%20Information^Account%20Information), then click close account and confirm.
URLS:
https://loseit.com
Please note that AccountKiller.com is not associated with the business listed on this page. AccountKiller provides easy-to-understand instructions and guides on how to cancel charges and relationships from the list of businesses on our site, we have no affiliation with these businesses.