Braincheck does cognitive performance testing on mobile devices using a battery of psychophysics tests.
This project was my first foray into commercial mobile app development. I was hired on to build a cloud based database and API for synchronizing data from the app. Once the initial work for that was complete, it was found that work on the app itself was behind schedule. To fill in the gap I picked up Java and the Android platform for the first time, and was actively closing bugs within a few days.
Android Studio, Vim