The latest info on Alitalia mobile apps
Like many other airlines, Alitalia offers an iOS app for all of your Apple devices.
For Alitalia MilleMiglia members, you'll be able to manage your account from the app, though using their website will no doubt provide more functionality
Alitalia has an Android app that works with most Android tablets, phones, and some Android Wear devices. Perhaps standard practice these days, the Android app offers the same functionality as the iOS app from Alitalia.
Also take a look at Alitalia's website by clicking here — you should be able to do what you need there.