Even after your free trial period expires, you will still have access to your account and all of the data and progress you have made will be saved. However, you will not be able to view this data, and it will be displayed as shown below.
Any Dynamic QR Codes that you created during the trial period will be deactivated and linked to a service page. If you wish to continue using these codes beyond the free trial, you will need to upgrade your account, which will allow you to reactivate your Dynamic QR Codes and resume using them without any restrictions.
You can upgrade your account at any time, even if your free trial has already expired. There is no time limit or restriction for upgrading your account, so you can do it whenever it is convenient for you.