The iOS app came out in December of 2013 after about three programmer-months’ effort. The Android version came out in December of 2014, after another three months’ effort.
The iOS app is written in Objective-C and developed with Apple’s Xcode suite of developer tools. The Android app is written in Java and using Android Studio.
We’re glad to share more details of our experience developing UChicago Mobile; write us at firstname.lastname@example.org.