HubHacks 2 Boston, MA, USA Visualizing a Thriving, Healthy, and Innovative Boston $3,195 in prizes Mar 14 – 30, 2015 224 participants
Apps for Communities Online Making local public information more personalized, usable, and actionable for all Americans. $100,000 in prizes Winners announced 99 participants
NYC BigApps Online In the inaugural NYC BigApps challenge, the City of New York challenged software developers to create apps to improve NYC. $20,000 in prizes Winners announced 81 participants