Answers / Loyalty programs
QR code vs phone number for loyalty sign-up — which converts better?
Written by PEKO Team.Last updated: 05/21/2026.
QR + phone-number capture combined converts 2–3× better than either alone. The QR removes the friction of typing a URL; the phone number unlocks Zalo/SMS reach for win-back. Skip either one and you leave 30–50% of sign-ups on the table.
Published: 05/09/2026
QR-only sign-up (scan, browse, leave) loses guests who don't want to type personal info on a tiny mobile form. Phone-only (cashier types it in) loses guests who feel exposed at the till. Combined (QR opens a one-field 'enter your phone' form pre-filled by autofill) hits the highest conversion.
In Vietnam, the combined flow auto-routes to Zalo OA after sign-up, which converts a one-time capture into a recurring channel. This compounds: every sign-up is now reachable for win-back at 90%+ read rate.
FAQ
What about email-only?
Email-only is the worst-converting flow in F&B by a wide margin (5–10%). Use email as a secondary capture, never primary.
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