By Mobile Geographics
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SkunkTracker displays live, updating maps of ships and boats. It uses AIS data streams from your own dedicated AIS receivers or from network feeds.
AIS (Automatic Identification System) transponders are carried by all large ships, all passenger vessels, and many recreational boats.
Note: you need an AIS radio, or access to a public AIS feed, to use SkunkTracker. Your radio can be connected via USB, Bluetooth, WiFi, wired Ethernet, or a USB-serial converter. SkunkTracker can connect to installed marine transponders, and to low cost recreational grade receive-only AIS radios.
What's New in Version 1.6
Show stationary ships less vibrantly.
Don’t buy this one
I thought this would allow me to track vessels with incoming freight.
Unless you have the required receives you will not get anything.