I was struggling for 1-2h to create a profile via standard webpage (while using phone, page is not really good for mobiles and is very old school). Thankfully, process went straight forward with the app. After entering the license plates the due amount was listed, payment was possible via app after providing card details. I liked it 👍 While creating the profile there are two fields requires that I have no idea what they are, Fiscal code and CAP. Devs could add better explanation of those fields.