A printed QR at the gate is scanned once from a screenshot at home and every day after; the register shows presence with nobody on site.
A QR scan identifies a device, not a face. A colleague's phone with the employee's login is enough for a full month of proxy attendance.
Basement parking, factory interiors and rural sites have no signal at the moment the scan is needed, and the employee is marked absent.
Three hundred temporary staff arrive at 07:00 for a one-day event; there is no time to enrol faces or install biometric devices.
Display a site QR that employees scan with the app, or issue employee QR codes on digital ID cards that a kiosk or supervisor scans. Both feed the same attendance record.
A site QR shown on a tablet or screen refreshes at a short interval, so a screenshot from yesterday, or from ten minutes ago, is rejected.
Require a liveness-checked selfie and a location inside the site geofence with the scan; the scan says where, the selfie says who, the GPS confirms both.
The scan is stored on the phone with the original time and uploaded when the network returns, so signal-less gates still record accurate check-in times.
One QR per site or per gate, printed or displayed on screen, with per-site rules for selfie and geofence.
Each employee's ID card in the app carries a QR that a kiosk tablet or supervisor phone scans at entry.
Screen-displayed QR that refreshes at a set interval to defeat screenshots and forwarded images.
Liveness selfie and geofence validation configurable per site; mock-location apps on Android flagged.
A shared tablet in kiosk mode scans employee QR codes at shift change without anyone needing a personal phone.
Scan time, site, method and verification status per record; exports by site, shift and date for payroll and clients.
Each layer closes one route to proxy attendance; choose by how much the site is at risk.
| Aspect | Static QR poster | Dynamic rotating QR | QR + selfie + geofence |
|---|---|---|---|
| Screenshot from home | Works | Rejected after the code rotates | Rejected by geofence and selfie |
| Colleague scanning for someone | Works with shared login | Works with shared login | Stopped by liveness selfie |
| Hardware at site | Printed sheet | Tablet or screen | Printed sheet or screen |
| Proof of location | None | Implied by the screen | GPS inside geofence |
| Best for | Low-risk offices, training rooms | Shared gates, kiosks | Deployed staff, contractors, sites |
Admin creates a site QR (static or rotating) or issues employee QR codes on digital ID cards.
Employee scans the site QR from the app, or the kiosk scans the employee's QR at the gate.
Selfie liveness check and geofence validation run with the scan where the site policy requires them.
Supervisor sees the scan as present, late or flagged within seconds; offline scans appear after sync.
Scan-based attendance feeds shift rules, overtime and LOP for the payroll export.
Print a QR, draw a geofence and the site is live; no device installation or electrician visit.
Rotating codes stop screenshots and the selfie stops a colleague scanning on someone's behalf.
Event staff, trainees and contractor gangs can be checked in on day one with a QR and a name list.
No fingerprint reader at a dusty site, no card machine on a construction floor; a printed QR and a phone are enough.
A scan takes a second or two, so a hundred people clear the gate before the shift starts.
QR scans go through the same late-mark, grace, overtime and LOP rules as face, GPS or biometric attendance.
A contractor gate where 150 workers from four sub-contractors enter between 07:30 and 08:00 with no network inside the compound.
e.g. a rotating QR on the timekeeper's tablet is scanned with a selfie; scans queue offline and sync from the site office at 09:00 with the original 07:45 timestamps intact.
Promoters, ushers and security for a three-day trade show, hired through two agencies and paid per day.
e.g. a staff list is imported the night before, each person gets an employee QR by SMS, and gate supervisors scan them in at 07:00 with a selfie so agency invoices match verified heads.
A skill-development centre marking trainee attendance per session for a government-funded programme.
e.g. a session QR is displayed at the start of each class, trainees scan with a selfie, and the session-wise report is exported for the programme's attendance requirement.
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