'Mr Johnson claimed on Wednesday that “no country in the world has a working contact-tracing app”. But the German app has been downloaded 13m times and Gibraltar’s has had good initial take-up.

The British territory started working on a tracing app based on open source code developed by the Irish government and the Google-Apple platform in early May. As the UK was taking the decision to scrap its £12m app effort on June 18, Gibraltar launched its version.

Officials estimate a fifth of the population has downloaded it so far, at a cost of less than £100,000.'

Not sure (from a quick read) if the rest of the UK is going to go with the same/similar codebase.

https://www.ft.com/content/9446192a-aff1-4e95-93fb-a5adfbc7b...