At launch, it was worse, working only 25 per cent of the time or less for locked iPhone to locked iPhone. When it was running in the background, the app also didn’t work well. Issues were also prevalent on Android smartphones, with problems remaining on May 26, especially when the app’s testers tried to get iPhones and Androids to share information.
Source: ‘Dishonest’: COVIDSafe app has not detected a case despite 6 million downloads