First, thank you for trying PrintMyCal! If you decide PrintMyCal is not for you, and you don’t want the PrintMyCal website to have access to your Google account, simply log into your Google account and follow this link:
You should see a list of apps and websites that have permission to access your account. Click on “PrintMyCal” and then click the “Revoke access” button on the right. Please let us know if there is anything we can do to improve.