Guide
Biometric vs Mobile Attendance: Which Is Right for You?
A side-by-side comparison for owners deciding how staff should mark attendance.
Short answer: A biometric machine proves who checked in, but only at the device, and every branch needs its own machine. A mobile attendance app that verifies location and takes a live selfie proves who and where on the employee’s own phone, with no hardware. For several small branches, mobile is usually simpler; for one large site with a single entrance, a machine can make sense.
The comparison
| Biometric machine | Mobile app (location + selfie) | |
|---|---|---|
| Proves who | Yes — fingerprint or face at the device | Yes — live photo for review |
| Proves where | Yes — the device is fixed | Yes — location checked against the branch area |
| Hardware | One device per branch, plus installation and repair | None — staff phones |
| When it breaks | Attendance falls back to paper until repaired | Works offline and syncs later |
| Live view across branches | Only if devices are networked to one system | Yes |
| Queues at shift change | Yes, at one device | No — everyone uses their own phone |
| Staff without smartphones | No problem | A manager records their attendance |
| Biometric data | Fingerprints or face templates are stored | Preez stores a photo; no biometric template |
When a biometric machine makes sense
- One large site with a single entrance and many staff
- Most staff do not carry smartphones
- You already own networked machines that work well
When a mobile app makes more sense
- Several small branches, where a machine at each is costly to run
- Staff move between branches
- You want to see every branch live from your phone
- You would rather not store employees’ fingerprints
Read more about how geofence and selfie attendance work.
Frequently asked questions
Is mobile attendance as reliable as biometric?
It verifies different things. A biometric machine proves identity at a fixed device. A location-and-selfie app proves the employee was at the branch and gives a photo for review. Mobile apps also keep working when a branch device would have broken down.
Is a mobile attendance app cheaper than biometric machines?
For multiple branches it usually avoids the largest cost: buying, installing and maintaining a device at every site.
Can I use both?
Yes, but most multi-branch businesses choose one so that month-end reports come from a single system.