QR Tracker -- QR Code Lap Coun

This app allows you to keep track of the number of laps achieved by each one of a large number of individuals.

The personal QR code of each individual is scanned at the checkpoint(s).

Course marshals/stewards use the back camera of their smartphone and/or the competitors scan their codes themselves on the front camera of stationary devices.

There is no limit to the number of devices. Each device can capture up to three QR codes in parallel.