Digital Stamp Card: How It Works in Wallet
How a digital stamp card works in Apple and Google Wallet: guests scan a QR code, no app, no account. Staff stamp with a PIN scanner that works offline.
Your guests are holding their phone when they pay. The paper card is usually somewhere else. A digital stamp card flips that around: it sits in Apple Wallet or Google Wallet, where your guest already looks several times a day. Here is how it works at the counter, what your team needs, and where the limits are.
What a digital stamp card is
You already know the mechanic. The guest collects stamps, and after a set number there is a reward. The tenth coffee, the sixth haircut, a meal on the house. The only new part is the medium: instead of card stock, the card is a wallet pass on the phone.
You decide how many stamps it takes, anywhere from 2 to 30. If stamps do not suit your business, hand out points instead, or work with tiers that give regulars a permanently better deal. A restaurant often prefers points per visit, since the size of the bill varies. A café tends to stick with the classic grid.
How the card gets into the wallet
There is a small sign with a QR code on the counter. The guest opens the camera, scans it, taps once, and the card is in their wallet. That is the whole process.
What matters is what does not happen: no app from the store, no account, no password, no confirmation email. Apple Wallet and Google Wallet are already on the device, which is why the barrier is so low. Very few guests install a dedicated app for one loyalty programme, and the ones who do delete it a few weeks later.
So there is no sign-up flow to explain: one sentence at the till, and the rest happens on your guest’s phone.
What happens when you stamp
Only your team hands out stamps, never the guest. There is a scanner that runs in the browser: no hardware to buy, no terminal, no installation appointment. You open it on the phone or tablet that already lives behind the counter. A PIN of four to six digits opens it, and after five wrong attempts it locks for 15 minutes, so nobody hands out stamps who is not supposed to.
The part you only learn to appreciate in daily service: the scanner keeps working without a connection. In the basement, in the courtyard, in the branch with the notorious dead spot. Scans go into a queue and sync once you are back online. For the guest, nothing looks different.
Paper or wallet: the honest comparison
The paper card is not a bad thing. It costs almost nothing, it works during a power cut, and everyone understands it instantly. It has three practical weaknesses.
First, it is rarely on hand. It is at home, in another jacket, or in the washing machine. The guest buys anyway, but the stamp does not happen, and neither does the reason to come back.
Second, it disappears. Nobody mourns a half-full card. It gets thrown out, and collecting either restarts at zero or stops for good.
Third, it can be copied. A rubber stamp from the stationery shop and a photocopier will do it. This does not happen constantly, but it happens.
The wallet card has none of those three problems. The balance is always current, because it lives in your programme rather than on a slip of paper. And for the first time you can see whether your card is actually being used.
What the lock screen does, and what it does not
This is worth getting right, because it is the point where promises tend to get inflated.
Both wallets can surface a saved card on the lock screen when the guest is near your business. Apple treats it as a quiet suggestion, Google calls it Nearby Passes. Your guest sees it while they are in the area anyway.
That is not a push notification. Nothing rings, nothing buzzes. If someone tells you a card sends an alert the moment a customer walks past your door, that is not how it works.
Push messages exist separately, and they are deliberately limited: at most three per guest in seven days. That cap is built in, and you cannot exceed it even by accident. It only feels like a restriction until you have seen how fast a card gets deleted once it turns into a nuisance.
What runs on its own
There are three moments you set up once and then leave alone: a birthday greeting, a win-back for guests who have not been in for a while, and an offer inside a fixed time window on a slow weekday. They keep working right through the busy season, when nobody has a spare thought for the loyalty programme.
Data protection without the fine print
Hosting is in the EU. Your guest’s consent is documented, so you can show what they agreed to if it ever comes up. Every guest gets their own access at /my-data, where they can view, export, or delete their data themselves without calling you. Data nobody needs any more falls under automatic deletion rules.
The responsibility still sits with you; what goes away is the admin that would otherwise land on your desk.
Who this works best for
A stamp card works best where guests come round regularly anyway and the individual bill is small. The café with morning trade. The bakery with the weak Tuesday afternoon. The shisha bar with a young crowd that never opens a newsletter.
When visits are further apart, collecting matters less than the reminder at the right moment. At the hair salon that is the appointment which otherwise slips from six weeks to ten. Beauty and nail studios follow the same pattern.
Getting started
The first card can be live in about 15 minutes: upload a logo, pick colours, define the reward, put the QR sign on the counter. If you run several locations, clone the finished programme onto the other branches instead of building it again. You pay a flat monthly price with no fee per card issued, and the details are on the pricing section.
And if you want to know whether it works for you, try it on one counter: one card, one sign, two weeks. After that you will know more than any comparison chart can tell you.
Your card can be live in 15 minutes.
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