NHS Covid-19 contact-tracing app launched in England and Wales

The NHS Covid-19 contact-tracing app has launched in England and Wales. Using APIs from Apple and Google, the app uses Bluetooth technology to track the time and distance between smartphone devices. It also offers a QR code check-in at various venues to aid contacting customers in case of a Covid-19 outbreak. It allows users to check their symptoms and book a test. About 160,000 businesses have downloaded the QR code in the last fortnight.