APRS Software Offer (automatic packet reporting system) (See in Wikipedia)

Track and record the paths of APRS units in your area onscreen!

GPSFlight's new release of GPSTeam Professional supports APRS recording via the serial port (your APRS equipment) or via the internet (APRS-IS).  This powerful new capability extends the GPSTeam software's powerful tools such as recording and playback, map management, multifunction zones with alerts, and altitude profiling to support APRS packets!

Designed for the APRS enthusiast, GPSTeam Pro with APRS allows you to filter, map, record and create alerts from APRS traffic anywhere in the world!  It is unlike most of the other APRS applications in that it is focused on a core set of APRS functionality to keep things simple, and focused on tracking.