The latest info on Qantas mobile apps
The iOS apps from Qantas will work with all of your Apple devices, from iPad to iPhone
For Qantas Qantas Frequent Flyer members, you'll be able to manage your account from the app, though using their website will no doubt provide more functionality
As the most popular mobile platform in the world, Qantas has taken notice of Android and provided an app for most Android devices. You can get the same stuff done on the Android app as you can on the iOS app for Qantas.
Also take a look at Qantas's website by clicking here — you should be able to do what you need there.