The notification is the feature that makes a wallet card more than a digital punch card, and it is the one most often oversold. It is the cheapest reliable channel a small business has, and it is much narrower than a marketing email.
How does a wallet card notification work?
The business updates the card on its own server, the wallet platform pushes that update to every phone holding the card, and the phone shows a short notification on the lock screen. The customer does not have to open anything for the card itself to change.
The mechanism matters because it explains the limits. The notification is a side effect of changing the card, not a message in its own right, which is why it is one line of text and why it cannot contain an image, a button or a tracked link.
What can a wallet notification contain?
A short line of text attached to a field on the card: in practice one sentence. Anything longer is truncated on the lock screen, which makes the first few words the only part that reliably gets read.
| Wallet notification | SMS | Marketing email | |
|---|---|---|---|
| Length | One line | 160 characters practically | Unlimited |
| Images | No | No | Yes |
| Links | Limited | Yes | Yes |
| Cost per send | Effectively zero | €0.01-0.10 | Near zero at small volume |
| Reaches non-holders | No | Yes | Yes |
| Reported open rate | ~90% | ~95% | ~20% |
The open rates quoted here are widely reported industry ranges rather than Loonine's own measurements. They vary by market and, importantly, by how often the sender sends.
What should a business send by wallet notification?
Things with a date attached. The notification's advantage is arrival timing, so it is wasted on anything the customer could equally read next week.
- A reward is ready to claim: the highest-converting message in any loyalty programme.
- A service or appointment is due, timed from the customer's own last visit.
- Something new and perishable: a beer on tap, a film this Thursday, a delivery that arrived.
- A change that affects a visit: opening hours, a closure, a move.
What not to send is a general promotion, which is both the most common use and the one that gets cards deleted. A customer who added your card expects the card to tell them about the card.
How often can you send wallet notifications?
Technically as often as you update the card; practically about once a month, and less where visits are infrequent. There is no platform-imposed cap, which means the restraint has to come from the business.
The cost of over-sending is not an unsubscribe but a deletion, and a deleted card cannot be reached again by any channel. This makes the wallet channel unusually unforgiving: email tolerates a bad month, a card does not.
Can a customer turn notifications off?
Yes, on both platforms, and they can do it per card. On Apple Wallet a customer can turn off Automatic Updates for a single card; on Google Wallet notifications are controlled in the app's settings for that card.
The card will still work and still display correctly with notifications off. It simply updates the next time it is opened. That distinction matters for staff, because a customer whose count looks stale may have notifications disabled rather than a missing stamp.
Do location-based wallet notifications track the customer?
No. A card can be configured to appear on the lock screen near a saved location, but the matching happens entirely on the phone. The operating system knows where the customer is and the business does not. No location data is sent back.
This is a real advantage over an app, which can request location access, background refresh and contacts outright. A wallet card is one of the few marketing channels that is more privacy-preserving than the alternative rather than less.
What are the limits nobody mentions before you buy?
Three, and all are worth knowing before a programme is designed around the channel.
| Limit | Consequence |
|---|---|
| Only reaches card holders | Enrolment rate caps the channel's reach entirely |
| One line, no images | Anything needing explanation must go by SMS or email |
| Deletion is permanent and silent | Over-sending loses the customer with no notice |
The first is the one that decides everything. A business with 80 enrolled customers has an 80-person channel however good the notification is, which is why Loonine treats the enrolment step, a phone number typed at the counter, the card delivered by text, as the part of the product that matters most.
Does a business need consent to send them?
Adding the card is a clear act of consent for messages about the card, but not for general marketing, and the two should be separated at the point of collection. A reward-ready notification is a service message; a promotion for an unrelated product is marketing and needs its own agreement.
The practical protection is to keep notifications about the card, the reward and the visit. Doing that keeps the channel inside what the customer agreed to, and has the useful side effect of keeping the card on their phone.
What does a good wallet notification look like?
Specific, dated, and about something the recipient already has a relationship with. The first six or seven words are the whole message, because that is what shows on a locked screen.
| Weak | Better | Why |
|---|---|---|
| Check out our new offers! | Your free coffee is ready | Names the thing the customer earned |
| We miss you | It has been 6 weeks, your card is still at 8 stamps | Gives a reason and a status |
| Big news this week | Back on tap Thursday: the winter stout | A date and a specific item |
| Book now for summer | Your service is due this month | Timed from the customer's own record |
The pattern in the right-hand column is that each message is about the customer's own record rather than about the business's calendar. That is also what keeps the channel inside the consent the customer gave when they added the card.
How quickly does a wallet notification arrive?
Usually within seconds of the card being updated, but it is not guaranteed and should not be treated as instant. The update is pushed to the device by Apple or Google, and delivery depends on the phone being reachable.
The practical consequence is that a wallet notification is the wrong channel for anything with a deadline inside the hour. A stamp appearing on a card can afford to arrive a minute late; a message that a booking will be released in thirty minutes cannot, and belongs in an SMS.
What happens to notifications when a customer is abroad?
They arrive normally, because a wallet push travels over data rather than the mobile network's messaging path, and it costs the recipient nothing. This is the one clear advantage the channel has over SMS.
It matters more than it sounds in tourist-heavy trade. A customer who enrolled while visiting still holds the card when they return home, and reaching them costs nothing, whereas an international SMS to the same person is both expensive and, in some markets, undeliverable.