Does what it should, sort of... – TrackaShip Universal Review

Purchased full version and it is really interesting for ships in the local waters, but falls down with cruise ships of interest by being days behind or not finding the ship at all (Grandeur of the sea, Celebrity Reflection, Brilliance of the sea, etc). It also seems to just drop out periodically. That being said, when it does work, most of the time, it seems to be interesting and useful. Depends on your needs as to whether it is worth 6 bucks.
Review by Ratslugger on TrackaShip Universal.