Setting favorites is helpful when you have a lot of apps and you want to make the ones frequently used more quickly accessible.
Accessing favorite Apps
Favorited Apps can be accessed either from the "Favorites apps" option on the Home screen or in the Favorites tab in the Apps list.
Setting an App as a favorite
On the Home screen, tap on Apps to get to your Apps list. There, simply tap on the star next to the App that you wish to make a favorite.
Removing a favorite App
To unfavorite an App, simply tap on the highlighted star next to it in the Apps list or Favorites tab of the Apps list.