No google or apple map overlay option

Good idea but inconvenience ,dangerous and poorly implemented because this app should allow you to use it with google map or other maps as if it is one app.

You have to open both maps one for gps turn by turn guidance and one for audio and have to switch back and forth continously in order to look at direction and reactivate audio.
Do this for road to Hana and you may not make it back alive.

This app needs to be redesigned to integrate with google map for convenience and safety then it will be a 5 star app.

L&MB about Maui GyPSy Guide Driving Tour, v1.6