A Former Googler Explains Why the U.K.’s Contact Tracing App Was a Disaster
And what everyone else can learn from it
Published in
7 min readJul 23, 2020
On June 18, the British government suddenly abandoned development of its contact tracing app, which was intended to tell people if they had come into close proximity with someone who tested positive for Covid-19. It worked 4% of the time.
