Appears to Not Maintain Current Information

I purchased this app for my Mac to track a specific vehicle-carrying ship (MIGNON) from Germany to Halifax to New Jersey in order to determine the arrrival date of my new car into port. Unfortunately the positional data was not being maintained for periods of days. Out of frustration I purchased another app for my iPhone to find that AIS updates were being broadcast hourly with the revised plot of the MIGNON’s position. My Mac is up to date with OS-X El Capitan 10.11.6 and current Java adapters. I also noted, (perhaps for addtional developer feedback) that the vessel infomation pop-up obscures the vessel map location, and erases the track history. This app needs a good deal of human factors engineering along with a proper database back-end.

spark-z about Boat Watch, v1.0.3