Wikipedia
HopStop was an online city transit guide offering detailed, door-to-door biking, bus, subway, taxi, train, and walking directions in real time, as well as official transit maps for 600 cities around the world via Hopstop.com or apps for Android devices, iPads, iPhones, and Windows Phones. The company, founded in 2005, was named one of the top 100 fastest growing software companies in the United States in 2011.
Transit directions were available for several major metropolitan areas, including Atlanta; Boston; Chicago; Las Vegas; London; Los Angeles; New York City; Paris; Philadelphia; Portland, Oregon; San Francisco; Seattle; Toronto; and Washington, D.C..
Apple Inc. acquired HopStop in July 2013, dropped support for Windows Phone a few days later, and in September 2013 removed the Android version of its app from the Play Store. In October 2015, HopStop was no longer available on any platform; Apple, instead, began using the iOS 9 update to supply Apple Maps transit directions. Apple received some criticism in response to this shutdown, mostly due to the discontinued support of around 100 cities and the very early release of the iOS9 update.