Earlier quoted context omitted.
From what I heard it works fine on Android, but on iOS it works ok... as long as you have the app running in the foreground, and your phone unlocked, while out and about. The only way to fix that would be to use this new API on iOS.
Since people seem to be downvoting without commenting: https://www.gizmodo.com.au/2020/05/covidsafe-issues-ios-ipho...
"The Government will work with Google and Apple to investigate whether the new functionality announced by Google and Apple partnership is beneficial for the app performance"