This app work requires an IOT computer that that listens on a WiFi socket (port) and when it receives the correct password (over the WiFi socket connection from the Android app) the IOT computer will activate a relay that is connected to the garage door opener open/close button. This app has a very simple/familiar user interface that consists of a touchscreen button to open/close the garage door. An app "Settings" menu is available to configure the following:

a) wifi SSID
b) IOT computer IP address (e.g. 192.168.1.98)
c) TCP port (e.g. 8888)
d) A secret password (this authentication password is sent from the app to the IOT computer)

More information about setting up an Intel Edison as the required IOT computer can be found here:

http://www.instructables.com/id/IOT-Garage-Door-Opener-Android-and-Intel-Edison