Open this page on both phones. Make one the counter tile, the other the customer.
K
Kaffehuset
Nørrebrogade 42
Tap for kvittering
Hold din telefon her. Du får din kvittering og et stempel.
…eller scan
KVITTO
Demo setup
Set it up on the tile phone first, then send the link to the customer phone so both match.
KVITTO
Running it with two phones
Open this page on the phone you'll use as the tile. Set the café, item and stamp count under Change café, item and stamp count, then save.
Copy the address bar link and send it to the second phone, or scan the QR code shown on the tile screen. The settings travel with the link.
On phone one choose This phone is the tile. Lay it flat on the desk.
On phone two choose This phone is the customer. Hold it against the tile and tap the screen once — that's the tap gesture.
Nine stamps become ten, the reward fires, the receipt is underneath, then Wallet and the review prompt.
Phones can't do a real NFC handshake through a browser, so the tap here is a screen tap. On the real product a passive tile in the counter does the same job. Nothing is stored and nothing is sent anywhere — it's all in the page.