You are using an older browser version. Please use a supported version for the best MSN experience.

"How does the Covid-19 tracing app work?"

"The technology in our pockets can now play a role in tracing the spread of coronavirus, with the launch of an app for England and Wales. But how should the app be used, who should use it and will it even work on your smartphone?"

More From Evening Standard

More From Evening Standard

image beaconimage beaconimage beacon