The Australian Government required you to have an app called MyGovID to do you business taxes and other administrative tasks. This app is only Apple or Android, there is no web interface.

Not a requirement, but in Poland a ton of administration things can be done from a dedicated iphone/android app - including using your official ID. It is optional though, and you can alway do the same stuff (ID aside) from the web, or using paper and going places in person.