The app uses Google Transit to find alternative mass-transit options for your trips, and it gives you the option to instantly purchase offsets from your phone.

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It has dozens of sub-products within it, from Google Transit (public transportation, e.g. subway, information and routing), Live Traffic, StreetView (and the incredible operation that makes that happen), Local search, image recognition technology for reading street and business signs, the list goes on and on.

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The app is missing some of the most useful features from the former iOS Maps app: Google's transit directions and street view images.

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