A free app for Android, by Mark D. Wagner.

QuickTrack Chicago is a free, convenient and easy-to-use all-in-one transit app for iOS.

It is a perfect app for those who live in Chicago and use the CTA every day or for those who commute using Metra or Pace, either every day for work or a fun weekend!

It is a companion app to QuickTrack San Francisco and QuickTrack New York.

You can easily find the latest routes, stops, stations, service alerts, and arrival times for the CTA, Metra, Pace, and Tracke systems.

The app displays the current routes, stops, and stations for each of the transit services you select.

You can also view the latest arrival times for each of the stops in your selected route.

You can also find information on service alerts for your selected route.

The app is great for commuters, school children, and people who need to find out when the trains are running and when the buses are arriving.

It is also perfect for people who live in the suburbs and want to find out when the buses and trains are running to the city.

It is the only app that has CTA Bus Tracker, CTA Train Tracker, Metra, Pace Bus Tracker, and Divvy all presented with a material-inspired UI.