After you have created a Donglify account on the software website, you should launch the program on your desktop and log in to your newly-created account using the same credentials:
To disable this option, click the "Settings" icon, select Preferences and uncheck the Start at system login option:
Note: Donglify is a system tray application. It runs as a background service each time you start up your computer and minimizes to the system tray, once you click outside of its area.
To open the main Donglify user interface, click the tray application icon in the system tray or right-click the tray application icon and select Open Donglify from the context menu: