【QR Digital Pass】 A Cross-Platform Check-In App for Events and Conferences
QR Digital Pass is a cross-platform mobile application built with React Native, designed to streamline attendee registration and check-in for exhibitions, conferences, and events.
What problem did you solve?
Event organizers needed a faster way to manage participant entry than manual check-in lists — one that could handle high attendee volume at the door, confirm identity quickly, and still leave organizers with usable data afterward. The app uses QR code scanning with image recognition to check attendees in, with automatic event-specific login and real-time sync of check-in data to a backend that stores it for statistical analysis.
Who actually uses it?
Event staff, at the door of exhibitions, conferences, and events, scanning attendee QR codes to manage entry — and event organizers afterward, who use the synced check-in data and backend statistics for post-event review and future marketing strategy. The app is live on the App Store.
What results did it produce?
Not yet documented here — worth adding concrete numbers if available: number of events run through the app, attendee volume handled, or check-in speed compared to manual entry.
What key decisions did you own?
- Cross-platform via React Native — one codebase covers both iOS and Android, so check-in coverage at the door isn't limited by which platform an event's staff or attendees carry.
- QR scanning paired with image recognition — rather than a bare QR decode, check-in combines QR code scanning with image recognition to confirm entry, aimed at holding up under high attendee volume at the door.
- Automatic event-specific login — login is scoped to the event automatically instead of requiring staff to manually authenticate per event, cutting a step out of the door workflow.
- Real-time sync to backend storage — check-in data syncs live rather than batching afterward, and is persisted specifically so organizers get statistical analysis for post-event review and future marketing strategy, not just a raw attendance log.
What constraints did you face, and how did you trade off?
Not yet documented here — e.g. constraints around scanning reliability at high attendee volume, offline/connectivity handling at venues, or backend design trade-offs for real-time sync.
Project Details
| Field | Detail |
|---|---|
| Category | Event Tech / Mobile Application |
| Services | Cross-platform app development |
| Tech Stack | React Native |