Scanova QR Code Generator doesn't ask for your credit/debit card details while you sign-up for a 14-day free trial.
Hence, when the free trial ends, you won't be charged anything automatically.
You'll be charged when you proceed to buy a subscription with Scanova that has four subscription options—UltraLite, Lite, Standard, and Pro. You can purchase the subscription here: Plans & Pricing
So unless you make the payment to buy a subscription, you won't be charged or billed.
Please note that all your QR Codes (Dynamic) will be deactivated once your free trial of 14 days ends. You will need to start a subscription post free trial in order to keep your QR Codes active.
If you still have any questions or concerns please reach out to us as firstname.lastname@example.org