TenthCup replaces the paper punch card at an independent cafe or coffee shop. Your customers keep their stamp card as a link on their phone, with no app to install. Leave a phone or tablet at the counter showing a QR code that changes every 30 seconds. Customers scan the code to collect stamps on their web card, and when a card is full, staff give the reward and mark it in the app.
WHAT IT DOES
The counter QR code
Put TenthCup on a tablet or phone by the till and open counter mode. It shows a QR code and six digits that change every 30 seconds, made on the phone from your shop's secret and the clock, so it keeps working when the signal drops. Each code expires after 30 seconds. Counter mode keeps the screen on, and a PIN stops a customer closing it.
A card that lives on the customer's phone
The first scan starts a card with its first stamp. The card is a web page: your shop's name and logo, a ring for every stamp, the reward and your terms. Customers bookmark it or add it to their home screen. If the camera does not scan, they type the six digits shown under the QR. Pages work in English, Spanish and French.
Stamp rules
A card can collect one stamp every ten minutes. The same code cannot stamp a card twice. After 20 wrong code entries, a card locks for the rest of the day. Each code can start up to six new cards. Staff can add or take off a stamp by hand, and the reason is kept in the card's history.
Rewards at the till
A full card shows Reward ready on the customer's phone. Find it in the app by its number, tap Give reward, and the card starts again.
Card settings
Choose the card's name, the reward, 6 to 12 stamps, a colour and a terms line. Pro runs a second card beside the first, for example a lunch card next to the coffee card.
Lost phone, same card
A customer can add an email or phone number to their card. Staff can search for a card by its number or that contact, and show the card's link as a QR code to move it to another phone.
Stats
On Pro: cards issued, cards active in the last 30 days, rewards given, the share of cards that came back for a second stamp, and stamps per day.
Plans
Standard holds 50 customer cards. Solo holds 300, yearly or as a one-time lifetime purchase. Pro removes the limit and adds a second card design, the stats and four seats, you and three staff. Cards already issued keep working on every plan, including after a change to a smaller plan; only new cards are limited.
What it stores
A card holds a number and its stamps, plus an email or phone only if the customer adds one. Cards and the shop's records are stored on our servers so every counter phone sees the same stamps. You can delete a card or the whole shop from inside the app.
WHAT IT DOES NOT DO
TenthCup takes no payments and holds no money. It sends no marketing messages to your customers. It does not connect to a point of sale system.
WHO IT IS FOR
Independent cafes, coffee shops, bakeries and juice bars that want to replace paper stamp cards. Customers use a web page and install nothing.
Contact: support@clearstackapps.com
Run a cafe loyalty stamp card. Customers scan a QR and keep the card online.
Aktualisiert am
09.11.2026