The GALAXY Note 3 Experience, as the app is called, will show you Multi Window, the new Air Command feature, and more. It is recommended that you install the app on a phone with a resolution of 1080 x 1920, running Android 4.1 and powered by a 1.4GHz CPU or higher.
The Samsung Galaxy Note 3 has a lot of competition this year with the Sony Xperia Z Ultra, the Nokia Lumia 1520 and the HTC One max. Samsung has responded to the challenge by putting up the app which does a great job in differentiating the Galaxy Note 3 from the other phablets. The app is free and is available from the Google Play Store.