How a geo-fence checks a punch
HR marks each workplace on a map and sets a radius around it. When the employee taps punch in, the app reads the phone's GPS position and compares it with the boundary. Inside the circle, the punch is accepted. Outside it, the punch is either blocked or accepted with a flag for HR to review, depending on the company's rule. One employee can be allowed several boundaries, for example the head office and two client sites they visit every week.
A location check is not live tracking
A geo-fence reads location only when the employee punches. It does not follow the person through the day or record the route they take. That difference matters for trust, because a check at the gate is far easier for employees to accept than constant monitoring. Explain this plainly in the attendance policy, and say what location data is stored, for how long and who can see it. In ZeniaHR, app punches can carry GPS location and be limited to check-in spots, under a mobile location rule set by HR.
Practical limits to plan for
Geo-fencing works best when HR sets it up with the ground realities of each site in mind, walks the boundary once with a phone, and reviews blocked punches for the first few weeks before making the rule strict.
- GPS can drift by tens of metres inside tall buildings and basements, so keep a margin in the radius
- Fake-location apps exist, so pair the geo-fence with phone binding or a changing QR code at the gate
- Field staff who move between customer sites need several boundaries or an on duty request
- Employees without smartphones need another way to punch, such as a kiosk or a biometric device
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What radius should a geo-fence have for attendance?
Use the smallest radius that still works reliably for that site. A compact office may work with 100 to 150 metres, while a large factory campus or construction site may need 300 metres or more. Test it on the ground at different spots, including basements and upper floors, before making it strict, and review blocked punches in the first few weeks.
Can employees fake their location in a geo-fencing app?
Some can, using fake-GPS apps or modified phones. Companies reduce the risk by binding each employee to one approved phone, checking location together with office Wi-Fi or a changing QR code at the site, and reviewing punches that look unusual. No single control is foolproof, so combining two of them works far better than relying on GPS alone.