An open-source Android app that provides LEGO set building instructions sourced from the www.cubiculus.com database.
This app was created over the course of about 8-10 hours in a weekend WillowTree Apps hackathon. It allows the user to track their sets, save progress while building, and track which sets they've completed. It also features Google+ sign-in for achievements. Nothing too special or crazy, but it was a fun project to churn out in a relatively small amount of time.