QR vs NFC pros/cons, offline logic, kiosk mode, and anti-tailgating notes — so you can pick the right entry flow.
| Aspect | QR Codes | NFC Tags | Kiosk Mode | Turnstile/Access |
|---|---|---|---|---|
| Hardware | Phone/tablet camera, printed QR | NFC tags + member phones (NFC-capable) | Tablet/stand + front-desk | Gate/turnstile + controller/reader |
| Check-in speed | Fast (aim ~1–2s) | Very fast (tap ~<1s) | Moderate (manual steps) | Fast (physical gate) |
| Offline support | Queue scans; sync later | Cache tags; sync later | Queue events on device | Controller buffer |
| Anti-tailgating | Cooldowns • random audits | Cooldowns • device binding | Staff oversight | Physical barrier + rules |
| CapEx | Low | Low–Medium (tags/decals) | Low–Medium (tablet/stand) | High (hardware/installation) |
| Best for | Budget/quick setup | Busy entries, fast flows | Front-desk workflows | High security sites |
Notes: Speed and costs are indicative; your results vary by device, network, and layout. Verify hardware and local regulations before installation.