Ultra Fast Geospatial Database & Geofencing Server
Traccar GPS Tracking System
Large-scale WebGL-powered geospatial data visualization analysis
GPS log file viewer and analyzer
Viking is a free/open source program to manage GPS data
Multiagent simulator of road traffic in Qt/C++ and OpenStreetMap.
Navigation and transit.
Multiplatform Ham Radio APRS and Mapping Program
A 3D Shareware Starflight Simulator by Deneban Software