Nobody checks in for a friend.

By making a check-in hard to make for someone else. Each of these is a setting you switch on in Phone check-in.

• Only at the workplace
  Check-in works only inside the radius you choose around your workplace: 50, 100, 150, 300 or 500 metres.
• Server time
  The time comes from Stafrix’s server, never the phone’s own clock, so it can’t be moved.
• One phone, one person
  A phone already used by one employee can’t check in another, and new phones can need a manager’s approval.
• A selfie or a fingerprint
  Ask for a selfie with every check-in, or the phone’s own fingerprint or face unlock.

Stafrix Intelligence watches for what proxies leave behind: one phone checking in several people, two check-ins too far apart to travel between, a location identical to the centimetre on different days, and more punches in a day than anyone needs. Each is flagged with the person and days.

A paper register can be signed for anyone, and a machine on the wall records a finger at one door while its data still has to be typed into payroll. Phone check-in records who, where and when, and goes straight into the attendance calendar and the payslip.