How to use Siri with Google MapsAn old iOS trick once let you directly query Google Maps with Siri, but it's dead now. Instead, use this workaround.
As much as I would love to be able to say "Open Boston, Massachusetts in Google Maps," that day is not yet here: Apple currently doesn't offer SiriKit routing for mapping applications.
Instead, whenever I query Siri for an address, I get Maps — which isn't always the best source for directions (especially if I need up-to-date traffic data). Back before the Maps app supported Transit directions, you could "hack" Siri to route via Google Maps by saying "Get directions to Boston via transit" — but these days, this command just opens the Maps app's direct Transit directions instead.
But there's still a way to open Google Maps with your voice whenever you want to use an alternative mapping service: Here's how to do it.
How to use Siri with Google Maps
First, make sure that Google Maps can accept voice control.
Open the Settings app.
Go to Privacy...
Source:
How to use Siri with Google Maps
