Scan the QR guests already have
No stamp cards, no sign-up sheet, no second app for guests. The ticket they showed at the entrance is the code booth staff scan, and a guest counts once per booth however many times they come back.
- Scan the QR, or type the short code when a screen is cracked.
- Works offline. Visits sync when the phone reconnects.
- Optionally require guests to check in at the entrance first.