The Inertial Measurement Unit is one of the sensors in mobile phones today, which can be used for location-based services. This article will tell you more about IMUs and positioning.
Covid-19 contact tracing apps are used to identify who has been in contact with a diagnosed patient. Find out here how they work.
In the world-wide pandemic situation, a lot of companies and governments have announced different Covid-19 tracking apps. This page will skip the political discussion and try to explain from a technical point of view how such apps work.