To access your data on the website and to enable syncing with your Fitbit or Garmin device, please visit https://www.carbmanager.com.
Log into the site with the account you have created in the app. To find your account, open Settings in the app and look under Account Settings. There, you will see your login email.
If you haven't created an account in the app, you will need to do so before logging into the website. Select Create Account in the left menu, and enter an email address and password. Then, use that email and password to log into the website.
If you have an account but forgot your password, you can reset it here: