Maybe you are reading that incorrectly. It is not the “NOAHlink SYSTEM software”. It’s the “Noah System” software. The Noah System is for professionals who want to organize a gazillion clients who use many different brands of fitting software. You don’t need all that organization. Just run the fitting software standalone and the fitting software will use it’s own database to handle your small number (maybe one) of clients. Don’t ever use the Noah system.
Also NOAHlink, when spelled that way usually means an obsolete hearing aid programming device, See this thread; Evolution of the Hearing Aid Programming Device.