Guests scan one code. They score each glass as it is poured, answer a question or two, and the wines stay hidden until the host releases them — flight by flight, at the pace of the room.
This is a working demo. Everything runs on this device — nothing is sent anywhere. This is one flight from a longer evening — a full event runs as many as the host needs. The other guests on the results screen are sample data, so the leaderboard has something to show. In a live event those are real people, scoring in real time.