I have recently downloaded the app to follow a friend's cruise. I was able to do with the exception when the app would crash on my I-Pad. I deleted the app and downloaded it again but the problem continues. I hope it can be fixed.

We live in central Minnesota and vacation in Duluth MN on Lake Superior several times a year. We love watching the ships enter and depart the canal under the lift bridge. This app lets us see which ships are in the area and the alert feature lets me know when a certain ship has pulled up its anchor and will be moving through. We use it every day to sneak peaks at the action on the webcams set up in Canal Park while we are at home. I also like checking out the busy ports around the Great Lakes to see our favorite ships and where they are. App works great and the one time I had a problem I emailed them and they fixed it within a day. Worth every penny and more!

Don't waste your money

The information on what I track is always marked as out of date and the ship or boat out of range even though it just sent me an alert and it can't find boats I'm looking straight at even in a port. It shows the port of St. Paul as completely empty right now. And it couldn't find the huge paddlewheel cruise ship I was looking at when I searched it either. I wish it wasn't too late for a refund.

The Pro version has a nifty "AR Mode" feature where the app shows vessel traffic overplayed on the camera view. There's apparently no way to exit this mode--even by quitting the app. The speed/bearing line is a great feature, but why is it not used to show my vessel? It would be a great help seeing if I was on a collision course.

Does not work on inland rivers. They didn't say that when I bought it.