Ideas: Perhaps remove the exit key as it is just the same as the BACK
key pretty much, I have now discovered.
I think the main thing that confuses users (me) is that when one powers
up their phone, there is no status icon (even though chosen in
Preferences.) One has to start the app in the launcher to get the icon
to appear there in the status (notification) bar there at the top of the
screen.
And its presence (from then on) is totally determined by the checkmark
in Preferences, and not by anything else.
So from boot all the way till e.g., an hour later when the user touches
the app with his finger to launch it, the app is indeed doing its job
just the same, except that its icon there in the status bar isn't
showing.
One would think "if the program is so smart that it can defend us
against all that traffic during that hour, perhaps it could also
remember to put its icon there in the status bar and not wait until my
finger press to do that".
Perhaps put a note there in Preferences mentioning if that is impossible.