Digital stamp cards
Why switch from paper cards to a modern loyalty solution
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16. 1. 2026
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6 min read
Up to 75%
of customers return repeatedly
Quick launch
in as little as one day
Notifications
directly to the customer's mobile
Stamp cards are among the simplest and most effective tools for building customer loyalty. The principle is known and simple – for every purchase, the customer receives a stamp, and after collecting the full number of stamps, a reward. However, the form has fundamentally changed. Traditional paper cards are now replaced by digital stamp cards on mobile phones, stored directly in Apple and Google Wallets, without plastic, and with significant benefits for the business.
The card is stored on the mobile phone, so the customer always has it handy – right next to their payment card. They don't need to install anything, remember anything, or carry anything extra. This very straightforwardness is why stamp cards work across various industries and are well-received by customers.
How stamp cards work
From the customer's perspective, the entire process is very simple:
- The customer fills out a short form on the website
- The card arrives via email, and with one click, they add it to their wallet
- The staff awards a stamp during the purchase, which is immediately visible on the card
- After reaching the target number of stamps, they receive a reward
From the business's perspective, the system is much smarter than a paper card – it allows for data management, automation, and customer communication.
How do customers register?
Simply place the link to the registration page (which you get with the digital card) on social media, via QR code in your establishment, on your website, or even on a table flyer or as a window poster. Anywhere the customer can encounter the link or QR code.
Take a look at this video, it's very easy.
What do stamp cards bring to your business?
- Quick launch of a loyalty program that motivates customers to return
- Awarding stamps directly via mobile phone from our web application
- Security with PIN code and two-factor authentication
- Ability to send notifications and offers for free directly to customers' phones
- Easy customer registration and easy operation
- No complexities - customers and staff are well familiar with the principle of stamps
- No printing costs, no plastics or paper
Data show revenue growth and increased footfall
Our internal data and data from our customers clearly show that stamp cards are a quick and simple way to encourage higher visit frequency and gain more insight into customer behavior.
PassMachine stamp cards show:
- On average, 89% of registered customers save them
- Up to 75% of customers return repeatedly
- Businesses see real revenue growth
A new communication channel right in your customers' pockets
On the back of the card, you can also share all important information with the customer, which is always up-to-date. There is space for address, phone number, link to the reservation system, Google Maps reviews, social media links, daily menu, or any important information for your operation.
One of the unique advantages of digital stamp cards is sending notifications. Using the PassMachine platform, it's possible to send notifications directly to the customer's card. You can send bulk, segmented, or localized notifications (geofencing via GPS). An example of a bulk notification is an announcement about a change in opening hours or a new menu. Segmented messages can be sent, for example, to customers who need only one last stamp to get a reward. Messages can also be sent if a customer approaches a certain point on the map (geofencing); for example, within 300 meters of the business to alert them. If the number of stamps changes, the notification is sent automatically, without further setup.
The stamp card thus becomes not only a reward tool but also a new communication tool for customer activation and retention.
If you want to try how fast registration is to get a card, you can visit our customers, or register here:
Frequently asked questions about stamp cards
What app does a customer need to have a stamp card?
Digital stamp cards work without a special app. An Apple Wallet or Google Wallet, which is part of most iOS and Android phones, is sufficient.
Do they work on both iPhone and Android?
Yes, the cards are compatible with Apple Wallet and Google Wallet, so they cover virtually all modern phones.
What if a customer changes phones?
They can save the card again – no data is lost. If the customer has a synchronized account (Apple ID or Google Account), the card often transfers automatically. If synchronization is not enabled, they can always find it at the download link in the initial email, or resend it themselves using the form.
Can different types of rewards be set up?
Yes. Discount, free product, entry, bonus stamp, or special offer – everything can be customized to your business needs.
Is it possible to track data?
Yes. You can see how many cards are saved, how many stamps have been awarded, and how customers are using the program. If you have multiple branches, you can track their performance and utilization. You can use the data to optimize your offerings.
For which types of businesses is a stamp card suitable?
Stamp cards are a universal solution wherever customers are expected to return repeatedly.
They are suitable for restaurants, cafes, food trucks, fast food outlets, small independent businesses, and large chains, nail studios, barber shops, hairdressers, massage salons, beauty clinics, and many more.
Where are PassMachine stamp cards already in use?
Businesses using stamp cards are located in the Czech Republic, Slovakia, Hungary, and France. In total, there are over 80, and their number is still growing.
