What your customers do
Tap the sticker
They hold their phone near the Kartak sticker on your counter. Phones without NFC scan the code on the stand instead.
- Café SabahStamps0 of 10RewardFree coffeeCard0142
Press Add
Your card opens with your shop's name on it. One press puts it in Apple Wallet or Google Wallet.
- Café SabahnowStamp added. 3 more to your free coffee.Café SabahStamps4 of 10RewardFree coffeeCard0142
Show it at each visit
You scan the code on their card. The stamp lands a few seconds later, with a note on their lock screen.
- Café SabahnowYour free coffee is ready. Show this card at the counter.Café SabahStamps10 of 10RewardFree coffeeReadyCard0142
Collect the reward
When the card is full, the reward note waits on their phone. They show it at the counter.



What you do

We set it up with you
One visit. We put your name, colours and reward on the card and show you how stamping works.
Stick it on the counter
The round sticker is for tapping. The stand carries the code for phones without NFC.
Stamp from any phone
Open the Kartak dashboard on the phone at the counter and scan the customer's card.
Watch it in the dashboard
Visits, new cards, rewards given, and who is close to one.
Send a note when it's quiet
Write to everyone, to people close to a reward, or to people who stopped coming. It lands on their lock screen.
What you get
The counter sticker
Round, with an NFC chip inside. A tap opens your card.
The counter stand
The same card behind a QR code, for phones without NFC.
Your card
In Apple Wallet and Google Wallet, with your name, colours and reward.
The dashboard
Stamp cards, see visits, and send messages from any phone.
Press every button.
The sample dashboard runs on a made-up café, so you can stamp cards and write messages without breaking anything.
