It’s easy to get your app listed in the Chicago Transit Authority app center: you just have to build an app that uses one of their datasets or feeds. That includes GTFS (the feed that gives apps the CTA schedules, routes, and stops); GIS data (what this app uses, giving stops and routes); real-time information from Bus and Train Tracker; and customer alert information.

The Chicago Bike Map app is listed in the iOS device section, with a screenshot I provided inserted into a mock iPhone.