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Do I need to install anything to use Digital Business Card?

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vCard QR Code: Format, Fields, and Phone Compatibility

vCard 3.0 vs 4.0, required vs optional fields, photo encoding limits, iOS and Android compatibility, and batch generation for sales teams.

By Tools Hub Editorial Team·Published March 3, 2026·Time to read: 8 min

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Digital Business Card Builder

Create a contact-save QR, publish a public card, export VCF, and prepare digital business card assets.

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vCard 3.0 vs 4.0

vCard 3.0 is the safe default. It works on virtually every phone made in the last 15 years -- iPhone, Android, even older feature phones. vCard 4.0 adds support for richer data types (multiple languages, more address fields), but older Android versions (pre-8.0) sometimes fail to parse it.

Stick with 3.0 unless you have a specific reason for 4.0 features. vCard QR Generator uses 3.0 for maximum compatibility.

Required vs Optional Fields

Required (the QR is useless without these):

•Full name (FN)

•At least one contact method: phone OR email

Recommended (significantly improve the contact entry):

•Organization / company name

•Job title

•Website URL

Optional (add only if needed):

•Street address (makes the QR much denser)

•Photo (avoid for print -- see below)

•Social profiles (use the URL field for LinkedIn instead)

Photo: Avoid for Print

Embedding a photo into vCard data encodes the image as Base64 text inside the QR. This dramatically increases QR density -- a 10 KB photo can add 13,000+ characters. The resulting QR code becomes too dense to scan from a business card. Skip the photo for printed codes. For digital-only use (email signature, on-screen display), a small photo (under 5 KB, 100x100px) may work.

iOS vs Android Compatibility

•iOS: Opens the native Contacts app directly. Handles vCard 3.0 and 4.0 well. LinkedIn URLs saved in the URL field appear as clickable links.

•Android: Behavior varies by manufacturer. Samsung, Pixel, and most major brands handle vCard 3.0 correctly. Some budget phones open a browser instead of the contacts app. Always test.

Testing Before Printing

1.Generate the vCard QR in vCard QR Generator.

2.Scan with iPhone -- verify all fields appear in the Add Contact dialog.

3.Scan with Android (preferably 2 different phones) -- verify the same.

4.Check that the phone number includes the country code and dials correctly.

5.Verify the URL field opens in a browser.

Batch Generation for Sales Teams

For teams of 10+ people, create a standardized template: same company name, same company URL, same formatting. Only change per-person fields (name, title, direct phone, direct email). This ensures consistent branding when prospects save your team's contacts.