Skip to main content

This website has now been archived

The NHS COVID-19 app trial on the Isle of Wight has now ended. If you still have the app, please uninstall it from your phone.

Get the latest advice about coronavirus

Alerts on the NHS COVID-19 app How the app works

Who will get an alert

If you become unwell with symptoms of coronavirus, you can allow the app to inform the NHS. This will trigger a notification that the NHS will send anonymously to other app users who you came into significant contact with over the previous few days. Whether you get a notification is based on a ‘contact risk model’ developed by NHS doctors and scientists. This model is being continuously updated to make it as accurate as possible and has been signed off by the Chief Medical Officer, Chris Whitty.

The technology is based on research evidence developed by epidemiologists, mathematical modellers and ethicists at Oxford University’s Nuffield Departments of Medicine and Population Health.

How long it takes to get an alert

Once you tell the NHS through the app that you have symptoms of coronavirus, other app users you’ve been near to should get an alert within 4 hours.

The alert will provide advice from the NHS on the right action to take to stop the virus spreading further and help those who have reported symptoms to get a rapid swab test. This will be essential in allowing the country to stay one step ahead of the virus.

What to do if you get an alert

Getting a notification from the NHS COVID-19 app does not mean you’ve necessarily been infected. If you and your household are well, ensure you follow advice on social distancing and look out for symptoms of coronavirus.

If you do develop symptoms, report your symptoms in the app and follow the NHS COVID-19 medical information and advice.