COVID-19 contact tracing app based on Apple-Google API launches in England and Wales

England and Wales launched a COVID-19 contact tracing app on Thursday, allowing users to trace contacts, check the local level of risk and record visits to restaurants and other businesses, four months after the technology was promised to the public.Reuters:The government had said a COVID-19 app would arrive in May, but early trials were dogged by problems, and developers abandoned home-grown technology in favour of Apple and Google’s model in June.
The app uses Bluetooth signals to log wh