No specific info about version 398.0. Please visit the main page of X-Plane 10 Installer on Mac Informer.
It simplifies the download and installation of the Apache Flex SDK.
Community Software Installer is a generic installer for 3rd party NMT app.
This application converts MS Flight Simulator 2004 and FSX add-on scenery.
X-Plane is the world's most comprehensive and powerful flight simulator for
X-Publish is a X-Plane package publisher tool for Mac.