https://techcrunch.com/2020/06/18/uk-gives-up-on-centralized-coronavirus-contacts-tracing-app-will-switch-to-model-backed-by-apple-and-google/

The UK has given up building a centralized coronavirus contacts tracing app and will instead switch to a decentralized app architecture, the BBC has reported. This suggests its any future app will be capable of plugging into the joint ‘exposure notification’ API which has been developed in recent weeks by Apple and Google.

The UK’s decision to abandon a bespoke app architecture comes more than a month after ministers had been reported to be eyeing such a switch. They went on to award a contract to an IT supplier develop a decentralized tracing app in parallel as a backup — but continued to test the centralized app, called NHS COVID-19.