NHS Covid-19 app will be rolled out in England and Wales on September 24. The free app, which will be free to download on smartphones and devices will use bluetooth technology to establish if the user has been in close contact with someone who later tests positive for coronavirus.
Other functions include an alert system if coronavirus rates rise in your area, a symptom checking tool and a countdown clock for how long you need to self isolate.
It is based on a new model developed by Apple and Google and has been undergoing trials on the Isle of Wight, in Newham, London, and by NHS Volunteer Responders.