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.

[2] 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. Chinedu Echeruo (BS Syracuse University, MBA Harvard Business School), formerly an analyst at investment banks and hedge funds, founded HopStop in 2005 and was HopStop's Chairman of the Board.

[9] 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.

HopStop.com provided directions in 600 metropolitan areas worldwide, such as:[14] Calgary, Edmonton, Halifax, Hamilton, Montreal, Ottawa, Quebec City, Saskatoon, Toronto, Vancouver, Victoria, Waterloo, Winnipeg.

Akron, Albany, Albuquerque, Allentown / Lehigh, Ann Arbor, Asheville, Atlanta, Austin, Bakersfield, Baltimore, Birmingham, Boston, Buffalo, Burlington, Charlotte, Chicago (service suspended as of October 2013), Cincinnati, Columbus, Cleveland, Dallas/Fort Worth, Delaware, Denver / Boulder, Detroit, Eugene, Flagstaff, Fresno, Green Bay / Appleton, Hartford, Honolulu, Houston, Huntsville, Indiana, Jacksonville, Kansas City, Lansing, Las Vegas, Lexington, Little Rock, Long Island, LA, Louisville, Madison, Memphis, Metro North Area, Miami / S. Florida, Milwaukee, Minneapolis, Missoula, Nashua, Nashville, New Jersey, New Orleans, New York City, Norfolk / VA Beach, Oklahoma City, Orange County, Orlando, Palm Springs, Philadelphia, Pittsburgh, Phoenix, Portland / Salem, Providence, Raleigh-Durham, Reno / Tahoe, Richmond, Rochester, Sacramento, Salt Lake City, San Antonio, San Diego, San Francisco, Santa Barbara, Sarasota, Seattle / Tacoma/ Olympia, Spokane, St Louis, State College, Stockton / Modesto / Tracy, Syracuse / Oswego / Utica, Tampa, Washington D.C., Wilmington.