Premium can be canceled by you at any time from within the Kardia phone app.
To cancel do the following:
- Click on the icon at the top right corner of your Kardia app home screen
- Click the “Manage membership” button at the center of the right side area
- Tap “Cancel membership” and confirm “Yes” on the following screen.
Thats it, premium is now cancelled and you will no longer be charged a monthly or yearly fee.