3 ms·
It looks like they are using beacons that are the same for 1 day. I think the google/apple version uses beacons that last until the bluetooth MAC address change
by benmmurphy 6y ago
It looks like they are using beacons that are the same for 1 day. I think the google/apple version uses beacons that last until the bluetooth MAC address changes which I think is 15 minutes on iOS. So you can setup bluetooth devices around the city to track people's movements who are using this app.