Circle of 6 was born out of the 2011 "Apps Against Abuse" challenge, a partnership between the Office of the Vice President, Department of Health and Human Services and the White House Office of Science and Technology Policy.
Taxi drivers protest against Uber, an on-demand car service app, during a 24-hour strike July 1 in Barcelona, Spain. They say it undercuts their business and are calling for the government to ban it.
David Ramos/Getty Images
An Aymara woman prepares to take part in a pageant in La Paz, Bolivia, in 2013. Jaqi-Aru, a community of volunteers is working on translating the Facebook interface in the indigenous language of Aymara.
The BACTrack Vio keychain breathalyzer and app on the iPhone at NPR headquarters in Washington, D.C. A public health researcher says tools like this could help people make better decisions about alcohol use.