Citymapper
When Hopstop (RIP) went off the Apple Store, New Yorkers turned to Citymapper, a transit app that combines several different modes of transportation, including walking, subways, cars and bike shares to optimize your trip-planning process. The instructions are incredibly detailed, going as far as telling you with subway exit to use to get you that much closer to your destination. Because every second counts in a New York minute.
Get the app: citymapper.com