On the table, the bill, or the delivery box.
Verified via WhatsApp, they spin and win instantly.
The reward pays out on the next visit — that's the whole trick.
No app store, no form, no password. The wheel opens in the browser, WhatsApp confirms it's really them, and the win is theirs before the change arrives.
Everything happens from your phone. Print the QR, put it on the tables, and the wheel is working before the lunch rush.
No training manual needed. The counter screen shows exactly one thing: is this reward valid, yes or no.
One verified spin per diner per visit, device and number checks, and an audit trail on every probability change. You control the odds; the system keeps everyone honest.