Chup is a free loyalty stamp app for any business with regulars. Customers collect stamps and earn rewards right on their phone — one app for every place they visit, with nothing to download from an app store. Owners stamp and manage it all from their phone too. Great for cafés, restaurants, bubble tea, shops and more.
Free · no app-store download · 155+ businesses on Chup.
It's the stamp card, as an app. Rather than carrying a different paper card for every shop, a customer keeps all their stamp cards in one place on their phone. They show a member QR, the business scans it, and a stamp is added — no stamps to smudge, no cards to lose. Because Chup runs in the browser and adds to the home screen, there's nothing to install and it works the same on any phone.
No app store, no install. Customers sign in with Google in one tap and can add Chup to their home screen like any app.
One QR works at every business on Chup. They scan it and add a stamp in seconds — no app juggling, no accounts to remember.
Every card fills on the phone and rewards appear the moment they're earned, ready to show at the counter.
All a customer's stamp cards live together — not a wallet full of paper from a dozen shops.
It runs in the browser and adds to the home screen, so there's no app-store friction to lose a new customer.
Earned rewards sit in a wallet and nudge the customer back — a paper card just sits in a drawer.
The same app helps customers find new places nearby — so loyalty also brings you new faces.
Chup started with cafés and works anywhere a stamp-and-reward program fits — food, drink and service businesses alike.
The stamp app is free for customers and free to run for businesses. From 1 November 2026 a new business pays a one-time BND 20 fee to join. Advanced tools are an optional upgrade called Chup Pro.
See pricing →Set it up in minutes — your customers already have the phone. Questions first? Read the FAQ.