This app is used to simulate a press of the Home Button.
It will do nothing else besides bring you back to your Home Launcher.
This app has no user interface, so pressing it will immediately bring you to Home Screen.
This is meant to be used for Samsung Galaxy Note devices for users to place on their SPen Window due to the difficulty in pressing the Home Button with the SPen.
Edge devices are also able to place this in their App Panel to simulate a Home Screen press.