I love Shipfinder (though didn't it include boatspeed in the old days?!) and I have just bought Ships Ahoy!
It would be great if the Shipfinder forum category were amended to include mention of Ships Ahoy (unless I am missing something?).
And if there were a help page: in particular it would have been great to have known something mentioned in one of the feedback items within iTunes, namely that Ships Ahoy! only gives feedback on ships within a radius set in iPhone/Settings/Ships Ahoy! I spent a lot of time trying to amend the range within the app before discovering that it was changeable from the main iPhone Settings screen!