How NFC Review Cards Work: A Plain-English Explainer

You've probably seen NFC review cards mentioned or spotted them at a local business. But how do they actually work? Here's a plain-English breakdown — no technical background required.

What is NFC?

NFC stands for Near Field Communication. It's a short-range wireless technology that lets two devices exchange a small amount of information when they're within a few centimetres of each other.

You've used NFC without knowing it. When you tap your phone on an EFTPOS terminal to pay — that's NFC. When you tap an Opal card on a reader — that's NFC. The same technology is used in Google Review cards.

What's Inside the Card?

Each NFC review card contains a small chip — roughly the size of a grain of rice — embedded behind the card surface. This chip holds one piece of information: the URL of your Google Business review page. There's no battery, no internet connection required in the card itself. The chip passively broadcasts its URL whenever a phone gets close enough.

How Does a Customer Use It?

1. The customer holds their phone (face-up) near the card — typically within 1–2 centimetres.
2. The phone's NFC reader picks up the chip signal.
3. A notification appears — on iPhone it's a banner at the top of the screen; on Android it varies by manufacturer.
4. The customer taps the notification and is taken directly to your Google review form.
5. Done — they're on your review page in under 3 seconds.

Does It Require an App?

No. Modern iPhones (iPhone 7 and later, running iOS 14+) and virtually all Android phones from 2016 onwards can read NFC tags natively — no app required. The capability is built into the operating system.

What If the Customer's Phone Doesn't Support NFC?

Every HarbourSide Web card includes a printed QR code alongside the NFC chip. Customers on older devices can scan the QR code with their camera app instead — it goes to the exact same Google review page.

Is the Review Link Permanent?

Yes. The URL is programmed directly into the NFC chip before the card ships. Once written, it can't be changed remotely — which also means there's no subscription, no third-party platform that can go down, and no dependency on anyone else's servers. Your card works for as long as the card lasts.

Why NFC Instead of Just a QR Code?

QR codes work well. But NFC is faster and lower-friction — customers don't need to open a camera app, line up a frame, and wait for recognition. The tap experience feels more seamless and immediate, which matters when you're trying to catch a customer in the moment before they leave.

That's why our cards include both — NFC for the majority, QR for the remainder.

Does the Card Ever Stop Working?

NFC chips have no battery and no moving parts. The chip itself will last indefinitely — longer than the card material. The only risk is physical damage from the card being bent or crushed significantly. Under normal use, a card placed on a counter or stuck to a wall will work for years.

The Bottom Line

An NFC review card is one of the simplest pieces of technology in your business. It stores one URL. It broadcasts that URL when a phone gets close. That's it. But in practice, it removes every barrier between a happy customer and a five-star Google review — and that simplicity is exactly what makes it work.