Govt urged to ditch COVIDSafe for GApple - InnovationAus:

recently released testing data revealing that upon launch, COVIDSafe logged encounters 25 per cent or less between locked iPhones. After a series of updates and improvements, this figure is now between 25 to 50 per cent.

A switch to using the official tracing architecture within the Android/iOS platforms seems a sensible move to me.