Canceling your plan
If you don't want to renew or no longer want to use Gliffy Online, you can cancel a paid account by emailing firstname.lastname@example.org. Include your account ID and mention whether you would like your account canceled or if you would like your account deleted.
After you cancel an account, you will no longer have Gliffy account access. Your diagrams will be stored and you can access them when you upgrade to a paid account.
If you want, you can also permanently delete your account (see Deleting your Gliffy account).