What a QR code provides
A QR code converts a destination into a scannable image. When it points to a permanent HTTPS card address, the page can be updated later without replacing the printed code.
A better introduction
QR code or vCard: which should a business card use?
Compare QR codes, web-based digital cards and vCard contact files, including how they work together and the limitations to test before sharing.
What a vCard provides
A vCard is a structured contact file that a phone or desktop contact application can import. It is useful for saving details, but a file already downloaded does not update itself when a role or phone number changes.
Why they work well together
Use the QR code to open a responsive card with current context and direct actions. Let the visitor review the information before choosing to download a vCard. This avoids forcing an unexplained file download from the initial scan.
Limitations to test
Contact applications interpret some fields differently, and cameras need sufficient QR contrast and size. Test the complete route on more than one current phone and inspect the saved contact before distribution.
Can a QR code contain a vCard directly?
It can contain contact text, but a permanent web-card address is usually easier to update and gives the visitor context before saving information.
Does a downloaded vCard change when the web card changes?
No. A previously imported contact is a copy. The public web card can remain current, while the recipient decides when to save an updated contact file.