Beelynk is a stand-alone software solution installed on a Raspberry Pi mini-computer. It uses position data from X-Plane versions 9-11 and relays that information as an ADS-B device to most Electronic Flight Bags (EFBs).
When configured to do so, Beelynk can also download real-life METAR and NEXRAD data from NOAA (National Oceanographic and Atmospheric Administration) servers, process that data, and send it to connected EFBs as FIS-B data that most apps can then display to the pilot.