That's not the reason people want the app.

The app stores your schedule and allows offline access. The app easily allows you to press on the hotel name and dial the number. The app also allows you to tap on the flight number which does a Google search for the flight status and gate information. The app allows you to tap the airports and see current delays from / to those airports. The app allows one tap to see the crew members on your pairing. The app is a one tap away from an updated schedule. I can't login into FLiCA to check my schedule nearly as fast as I can with the app.

For all these reasons I am sold on the app.