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Guide / For Administrators / NFC Card Programming

Programming NFC cards for tap-to-share.

A 10-minute walkthrough that takes a blank NFC card from box to working in someone's hand.

01Recommended cards

Buy NTAG215-chip cards. They're widely available, hold enough memory for a URL many times over, and work with every modern phone (iOS 13+, Android 4.4+). Skip the cheaper NTAG213 — they're tighter on memory and you'll regret it the first time you want to encode anything richer.

Search "NTAG215 PVC card" on your usual supplier (Amazon, AliExpress, or a regional NFC distributor). Look for matte-finish PVC cards if you want to print on them, or pre-printed blanks if you'll add a sticker. Avoid the keychain fobs — they're awkward to hand to people.

02Programming via NFC Tools

Install NFC Tools on your phone (iOS App Store or Google Play, free). The flow is the same on both platforms:

  1. Open NFC Tools, tap Write, then Add a record.
  2. Pick URL / URI. Paste your card's URL (e.g., yoursite.com/jane-doe).
  3. Tap OK, then Write. Hold the card flat against the back of your phone until you hear the confirmation beep.

Two cards in two minutes once you've done the first. For a team rollout, bring the box of blanks to a single rollout meeting and program them assembly-line.

03Direct-write vs URL-write

NFC Tools offers two modes; URL-write is what you want.

  • URL-write (recommended): the card stores your Vinc URL. When tapped, the phone opens the URL. Updates are instant — change the page server-side, every card already in the wild reflects the change on the next tap.
  • Direct-write (avoid): the card stores the contact data directly as a vCard payload. The phone shows "Save contact?" without opening a page. Sounds smooth, but: no analytics, no lead form, no updates after the card is printed. You're stuck.
The whole point of Vinc is the live page behind the URL. Direct-write throws that away.

04Testing

Before handing the card to a customer, tap-test it on:

  • Your own phone (sanity check)
  • A different OS (e.g., test on iOS if you wrote with Android, and vice versa)
  • A locked phone (NFC works on iOS even when locked, on most Androids too)

If the tap doesn't trigger, 90% of the time the card is just oriented wrong — try moving it slowly across the back of the phone until the chip aligns with the phone's NFC antenna (varies by model).