@dennismoore,

I have no other problems with other app's.

The phone gives me all the messages.
The watch show every message I get or reminders.

It is only with the Tomtom app the voice has a problem.
I have tried every setting and none will work.

Using a second test phone is no big problem for me.

I only use the app for short trips.

As for long trips I have a standalone GPS unit that has never failed me with a 7in. screen.
Full animated split screen to show what exit to take. Plus Lifetime traffic and speed cams.
All for one price and works out of the box first time.

GPS app's great but to many problems, to many updates.
Everything is an extra.

And they always have some hiccup that causes problems.
We will have to see when 5G comes into being how well these apps work.
But that means new phones to have 5G.

That means more costs for a new phone and gps app's having more problems

my GPS unit is 3 years old and is still going strong.