New Haven Harbor
I live directly overlooking New Haven Harbor, one of the busiest ports in the northeast. This app does not show any of the traffic within the harbor. I have contacted the people that sell this (paid) app and was told it was a system problem beyond their control.
I recommend the Marinetraffic app if you would like to identify the many vessels that sail in/out of New Haven.
heflys2 about
Ship Finder, v9.0.0