While Ninox does have basic maps... Looks like you can register for the google map API and use that via an HTTP query.

https://developers.google.com/maps/documentation/embed/get-started

Or you could just launch a Google Maps webpage from a button.

In the UK we use postcodes so I put this code in a button On Click:

openURL("https://www.google.co.uk/maps/place/" + Postcode)

or you can use Zip codes in the same way.