Can Australia's coronavirus contact tracing app COVIDSafe lift the country out of lockdown?

To speed up the process of contacting people who may have been exposed to coronavirus, the Federal Government is asking Australians to download its new COVIDSafe app. The more people use the app, the message goes, the faster we can slow the spread of the virus and the sooner we can lift restrictions and return to the pub. 'The first job of the COVIDSafe app is to keep you safe,' Prime Minister Scott Morrison said in a press conference on Tuesday.