The printed code holds a short QR Cake link, not the contact data itself. Scanning it with a phone camera opens your hosted contact card in the browser, showing your photo, name, job title, company, and bio, with tap-to-call, tap-to-email, website, and map links below. Tapping Save contact downloads a standard vCard 3.0 file (.vcf) that the phone's contacts app imports, so nobody has to type your number. The card needs an internet connection to load, but the saved contact works offline.
Every vCard code saved to a QR Cake account is dynamic, so you can change the card after it is printed. If your phone number, email, or office address changes, edit the fields in your dashboard and the next scan of every printed code shows the new details. Contacts that people saved earlier stay as they were on their phones. A static vCard code, by contrast, writes the contact data into the pattern itself and cannot be changed once printed.
A vCard QR code suits anyone who gives out contact details face to face, again and again: real estate agents whose name is on dozens of yard signs, sales reps working trade shows and conferences, consultants who hand out business cards, and law firms, accounting practices, and dental offices that want clients to save the right direct number from the reception desk.