Regarding the development of a new corona tracking application, the United Kingdom abandoned its own route and changed the policy to API use of Google / Apple

In addition to Apple and Google , governments of each country are actively working on application development in an attempt to track infected persons of the new coronavirus (SARS-CoV-2) and send notifications to concentrated contacts. The British Ministry of Health has been developing its own app since March, but on June 18, 2020, it announced that it would change direction and use the API jointly developed by Apple and Google.

Next phase of NHS coronavirus (COVID-19) app announced-GOV.UK
https://www.gov.uk/government/news/next-phase-of-nhs-coronavirus-covid-19-app-announced

UK abandons contact-tracing app for Apple and Google model | World news | The Guardian
https://www.theguardian.com/world/2020/jun/18/uk-poised-to-abandon-coronavirus-app-in-favour-of-apple-and-google-models

The British government was independently developing an app that sends notifications to smartphone users when they approach a person infected with SARS-CoV-2.

The UK's National Health Service (NHS) started developing the app in March 2020 following the pandemic, and from May 5 it began trialing the app on the Isle of Wight in southern England. At this time, it was announced that the application will be deployed all over the UK from mid May, but the NHS application is only recognized by 4% of iOS devices and 75% of Android devices during the test on the Isle of Wight It turned out.

James Besel, who is responsible for app development on June 17, said about the app ``It will be in shape by winter, but the app is not a government priority'', and as a result of the trial on the Isle of Wight, 'People prefer to be contacted by real people when they hear bad news, rather than by email or text message,' he said .

And on June 18, the UK Department of Health announced plans to replace the NHS tracking app with apps designed by Google and Apple. This is a big turn, as the Ministry of Health has denied using Google and Apple tracking apps. According to Minister of Health Matt Hancock, Bluetooth-based NHS apps could not tell the exact distance between users and whether they were 1 m or 3 m apart. It is reported that it was not possible to determine whether it was outside or outside.

Hancock hasn't announced a specific release date for the app, but it's expected to be around fall to winter.