Stampzo replaces paper punch cards with a QR digital stamp card for cafes, salons, gyms and kirana shops in India. Customers scan one QR to join — no app store download — and keep the card on their phone. Staff stamp visits from any phone; no extra hardware. Shops get a print-ready QR kit, a visits and rewards dashboard, and clear pricing in rupees. First program is free. Built for one shop, one offer, one reward — not a multi-brand points mall.