The latest info on China Airlines mobile apps
The iOS apps from China Airlines will work with all of your Apple devices, from iPad to iPhone
For China Airlines Dynasty Flyer members, you'll be able to manage your account from the app, though using their website will no doubt provide more functionality
China Airlines has an Android app that works with most Android tablets, phones, and some Android Wear devices. You can get the same stuff done on the Android app as you can on the iOS app for China Airlines.
Also take a look at China Airlines's website by clicking here — you should be able to do what you need there.