iOS users should download the latest version of Google Maps so they can take advantage of some new transit features. Version 4.47 of Google Maps brings additional details when getting directions via public transit. Rather than highlighting the intersection where an underground train entrance is and expecting you to find it, Google Maps will tell you exactly which entrance you need to go into to take the correct train. For instance, on some New York City Subway lines, the entrance may only serve one direction of the train and a rider may not realize it until they realize the stops are in...
Source: https://www.gsmarena.com/google_maps_on_ios_brings_more_transit_details_and_restaurant_wait_times_-news-30203.php