In a scramble to track, and thereby stem the flow of, new cases of Covid-19, Governments around the world are rushing to track the locations of their populace. One way to do this is to write a smartphone app which uses Bluetooth technology, and encourage (or mandate) that individuals download and use the app. We have seen such examples in Singapore and emerging plans in the UK.
Apps that use Bluetooth are just one way to track location. There are several different technologies in a smartphone…