Prime Minister Scott Morrison has given assurances data collected from the coronavirus contact tracing app will be kept in Australia, batting away concerns it could be collected by United States' law enforcement agencies.

Mr Morrison said information collected by the app, which will use American company Amazon to host sensitive data, will be stored in Australia.

Labor fears data collected by the coronavirus app could be accessed by US law enforcement. Credit:AAP

"The server is in Australia and it's using Amazon Web Services, who work with Australia on many, many sensitive issues in terms of Australia's data management," the Prime Minister said. "It's a nationally encrypted data store."

The app will collect users' names, mobile phone, postcode and rough date of birth in order to automate the contact tracing regime that helps quickly lock down the close contacts of positive coronavirus cases.