To remove remove your account from Count.It, and delete your related activity logs, please follow the steps below, also outlined in this 10 second video:
Open your Count.It app, and log in to your account.
Tap the navigation icon at the top left of your group homepage.
Tap the Profile option.
On your Profile screen, scroll down and tap the "Delete" link.
To confirm your choice, click the "Delete Account" button on the pop-up dialog.