INSTEAD OF A PAPER CARD,
A DIGITAL STAMP CARD
Sadakio is a digital stamp card for cafés. Your guest scans a QR code, and the card stays on their phone and in Apple Wallet. You give the stamp at the till with one tap. The card never gets lost, and you see who came back.
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Paper or digital?
A paper stamp card is cheap and familiar. Its weak spots are that the card gets lost in the guest’s wallet and that you cannot know who came back.
| Paper stamp card | Digital stamp card | |
|---|---|---|
| If the card is lost | The stamps are gone too | The card is on the phone and in Apple Wallet, it cannot get lost |
| Stamp record | A stamp or hole punch, easy to fake | Every stamp recorded with the barista’s PIN |
| Who came back | Unknown | In the panel: who came, who drifted away, who is close to a reward |
| Reminders to guests | None | Birthday, «we miss you» and campaign messages |
| Phone number | Not kept | The card is scanned by QR from the guest’s own phone, nothing is done by saying a number |
| Cost | Printing and a stamp | Free start, then a monthly subscription |
A digital stamp card in three steps
Put the QR at the till
Open your account and your programme comes ready. Put the QR code at the till or on the table.

The guest opens a card
They scan the QR code and their card opens in 20 seconds. No app to install.

You give the stamp
The barista scans the card’s QR code and the stamp registers instantly. The card updates with every stamp.

Drop the paper card
today
14 days free, +30 days after your first 20 stamps, no card needed. Your stamp card comes ready for your café.
Frequently asked questions about the digital stamp card
What is a digital stamp card?
A digital stamp card is the paper stamp card on the phone. Your guest scans a QR code and opens a card in 20 seconds, a stamp lands on the card at every visit, and they see the reward getting closer. The card never gets lost, and you see in the panel who came back.
Does the guest have to download an app?
No. The card opens in the phone’s browser. On iPhone it is added to Apple Wallet with one tap, and on Android it can be added to the home screen.
How is a stamp given?
The barista scans the QR code of the card on the guest’s phone with the tablet or phone at the till. The stamp registers on the card instantly, and every transaction is recorded with the barista’s PIN.
How much does the digital stamp card cost?
You start with 14 days free, +30 days after your first 20 stamps, no card needed. After that the Starter plan is ₺1,290 a month, VAT included. It is a monthly subscription with no commitment. The current offer is on the Pricing page.





