[loganlinn]

Engineer from Prismatic here. The Android app was written with Java. While we would have loved to build it with Clojure, but support/perf on Android isn't quite there yet (at least for us).

[nstevens]

Libraries like RxJava definitely made it easier https://github.com/ReactiveX/RxAndroid https://github.com/nstevens/androidguide/wiki/Libraries