What you need to know about Lufthansa mobile apps
There is an iOS app from Lufthansa which will work on your iPhone, iPod, or iPad.
For Lufthansa Miles & More members, you'll be able to manage your account from the app, though using their website will no doubt provide more functionality
The Android apps from Lufthansa work with all Android phones and tablets from various manufacturers (Samsung, LG, Google, etc.), and Android Wear watches might also be compatible. Perhaps standard practice these days, the Android app offers the same functionality as the iOS app from Lufthansa.
Instead of downloading the mobile app, you can try visiting the mobile website of Lufthansa to find flights and manage reservations. Click here for their website.