Key takeaways:
- A Google review card pairs a passive NFC tag with a QR code that both open your Google review page.
- The tag has no battery: the smartphone powers it from 4 cm away and opens the stored link.
- iPhone XS and later detect the card in the background; older iPhones need an app or the QR code.
- Four usual reasons a card stops working: a changed link, a removed profile, tag damage, metal nearby.
Google review cards work by storing your Google review link twice: on a passive NFC tag that a phone detects with a tap, and in a printed QR code that any camera can scan. Both paths end on the review window of your Google Business Profile, where customers leave feedback and a star rating without searching Google Maps. The card holds no app and no battery. What confuses local businesses is the detail: why one iPhone opens the page instantly while another shows nothing, and why a card that worked for months lands on an error page. This guide follows the signal from the tag to the review page, then lists the failures that stop a card and how to test each one.
What is a Google review card?
A Google review card is a physical card, the size of a credit card or business card, that carries an NFC tag and a QR code pointing to the review page of one Google Business Profile (formerly Google My Business). Customers scan or tap it, and the page opens without a search.
The card does not post anything by itself. It shortens the review process: no typing the business name into Google Search, no hunting for the Reviews tab. Sellers also call it a Google review tap card or a custom NFC card, and some offer review cards without monthly fees.
What are the benefits of Google review cards?
The benefits of Google review cards are speed and timing: the card prompts customers to leave reviews while the experience is fresh. Google notes that more reviews and positive ratings can help a business's local ranking, and recent customer reviews build trust with potential customers and support your online reputation.
How do Google review cards work, step by step?
Google review cards work in five stages that take a few seconds, from the smartphone powering the NFC tag to the customer posting the review from their own Google Account.
- The customer holds the phone flat against the card.
- The NFC field powers the tag, which answers with its NDEF message.
- The URL opens: after a notification on iPhone, instantly on Android.
- The review window of your Business Profile appears.
- The signed-in customer picks a star rating, writes feedback and taps Post.
A QR code scan skips the NFC tap and joins the path at stage 3: the camera decodes the printed URL. Nothing about the review differs between scan or tap.
An NFC connection typically needs a distance of 4 cm or less (about 1.5 inches), according to Android Developers NFC documentation.
What happens when an iPhone or Android phone taps the card?
When a phone taps a Google review card, the system detects the NFC tag in the background and treats the stored address like any web link: iPhone shows a notification first, Android opens it directly.
Apple's Core NFC documentation states that iPhone XS and later support background tag reading: the iPhone displays a pop-up notification for each new tag, then opens the URL in the app that claims it or in Safari.
To avoid unintentional tag reading, the system reads tags in the background only when the user's iPhone is in use.
Apple Developer, Core NFC: Adding Support for Background Tag ReadingThe same page lists moments when background detection is off: Apple Pay Wallet is in use, the camera is in use, another app is running an NFC session, or Airplane Mode is enabled. A customer with the camera already open will tap and see nothing.
On Android, the developer documentation says devices usually look for NFC tags when the screen is on and past the lock screen, unless NFC is disabled in Settings.
Starting with that version, a tag holding a web address triggers the standard view action instead of a dedicated NFC event, so the card opens like any link.
What is stored on a Google review card's NFC chip?
A Google review card's NFC chip stores one short NDEF message, the NFC Forum standard, with a URI record holding the web address of your review page. It holds no personal data about the customers who tap it.
The tag is passive: NXP describes its NTAG chips as receiving data and energy from the reader's 13.56 MHz field, and NXP's NTAG 213/215/216 specifications list 144, 504 or 888 bytes of user memory, with 10 years of data retention. A Google review link fits the smallest option easily. For NFC technology in depth, see how NFC cards store data.
Each card pairs an NFC tag with a QR code, works on iPhone and Android, and sends customers straight to your review window, with a one-time purchase and no monthly subscription to keep it running.
See the review cards →
What does the QR code on a Google review card do?
The QR code on a Google review card is the backup option: it prints the same review URL as a pattern the camera decodes, so customers with NFC off, an older phone or a thick case still reach the review page in one quick scan.
Google can generate this Google review QR code itself: in your Business Profile, select Read reviews, then Get more reviews, where you can also send the link by email or share it on social media. Google Business Profile Help notes that reviews QR codes can only be generated on a computer browser, not on mobile devices. The QR code and the NFC tag must share one URL.
How to set up Google review cards
Setting up Google review cards takes four simple stages, from a verified Google Business Profile to a test on real devices, before the cards reach the counter or front desk.
- Create and verify your Google Business Profile.
- Copy the review URL from Read reviews, then Get more reviews.
- Write it to the tag with an NFC app and print it as a QR code.
- Tap with at least two different phones, then scan the QR code.
Stage 3 is all there is to how to program NFC Google review cards. Pre-programmed cards skip it: Digifeel cards, for example, are activated by scanning a QR code and entering an activation code, in a few minutes. Never skip stage 4. For how to create a Google review card from scratch, including design and card printing, see how to build your own card.
Why does a Google review card stop working?
A Google review card stops working for one of four reasons: its URL no longer leads to a live review page, the Business Profile behind it was suspended or removed, the tag is damaged, or metal near the card weakens the field that powers the tag.
Links break more often than tags. Google's Places documentation warns that a place ID may become obsolete if a business closes or moves to a new location, so a URL built by hand from an old place ID can lead nowhere. Test the URL in a browser before blaming the tag.
| Symptom | Likely cause | Fix |
|---|---|---|
| Tap fails, QR code works | NFC off, camera open, metal or magnetic case | Close the camera, remove the case |
| Tap and QR show an error | Old URL or suspended profile | Update the URL from Business Profile |
| Tap fails on every device | Cracked or bent tag | Replace the card |
| Worked, then stopped | Seller's redirect link expired | Check the seller account |
How to use Google review cards to get more reviews
To use Google review cards well, time the request: the card should reach the customer right after a good experience, with a short, friendly ask. That timing is how to enhance customer engagement with Google reviews.
In retail, the card sits at checkout; restaurants leave it on the table with the check; service pros hand it over when the job is done. Staff wording and ways to present the card to customers are covered separately.
- Do: offer the card right after positive customer feedback, with a one-line review request.
- Don't: hand it only to happy customers; Google's policy treats selective requests as review manipulation.
- Don't: offer a discount or gift in exchange for reviews, which Google prohibits.
Frequently asked questions
Do customers need a Google account to leave a review?
Yes. Google Business Profile Help states that customers must be signed into a Google Account to leave a review, and they can create one with a non-Gmail email address. Customers who use Gmail, YouTube or Google Maps are usually signed in already.
Can someone rewrite the tag on my review card?
A tag that was never locked can be rewritten by anyone with a free NFC writing app. NXP's NTAG chips offer password protection and a permanent read-only lock, so ask whether your cards ship locked, or lock the tag once the correct link is written.
How much do Google review cards cost?
Pricing varies by seller and pack size, but the cost that matters most is recurring. Some cards store a redirect link run by the seller and need a monthly subscription to keep it alive; others are a one-time purchase. Compare the total over two or three years.
Your turn
A Google review card is simple hardware: a passive tag, a printed code and one link that must stay valid. When it fails, the cause is the link, the profile, the tag or metal nearby. Before you order or print anything, copy the review URL from Google Business Profile, open it on two phones, and confirm the review window appears. Then put the card where your happiest customers already stand. Which spot in your business sees the most satisfied customers each day?
