I have a Zeus 3 for my inside helm station and Zeus 2 for my
cockpit helm station and can use the "Link" app for
remote viewing and control on my iPad and iPhone.
As Dave says above, there are a few things that the "Remote Control" function of the app won't allow, such as Auto-Pilot. I use Czone for digital control of
boat electrical functions and that won't
work either. The message at the top of these sections says "Remote control of this screen is not available for
safety reasons."
I tested to see what does work and I could work all functions on the chart view remotely, such as set a waypoint, turn radar on/off, measure distance, switch screen views, etc. I can access all the menus and apps, and was able to turn an
alarm on and off.
As cool as it is, I don't use this app on my iphone or ipad because it loses the connection when I go into my aft stateroom (so can't use it while in bed) or in the cockpit.
So when I'm in
bed I leave the stateroom door open and I can see the Zeus 3 from
bed (and read the text with a opera glasses) and use an
anchor watch app on my iphone by my bed to supplement the
anchor alarm on the Zeus.
If anyone has tips for strengthening or extending the wifi signal from the Zeus I love to know.