The coastguard app isn't too bad- but you are quite right it doesn't do everything.
However, you have to remember that CG aren't trying to make a profit, and in fact
they are moving towards making the app free.
The main point of the app is for us to make our own trip reports and have them
checked if we are overdue. On a busy day, apparently the operations centre in
Mechanics Bay gets around 2000 calls, and the more of them done on the app, the
more CG can concentrate on those of us who need assistance.
Also, people may not know it, but that ops centre is now responsible for everything