UK finds itself almost alone with centralized virus contact-tracing app that probably won’t work well, asks for your location, may be illegal — The Register

Unless people have the NHS app running in the foreground and their phones awake most of the time, the fundamental principle underpinning the entire system – that phones detect each other – won’t work, writes Kieren McCarthy.

Here is the link: https://www.theregister.co.uk/2020/05/05/uk_coronavirus_app/