A community-based app that makes household chores easier took first place Sunday, June 19, in the first-ever “Hack for Change” contest, held in San Francisco.

The Good Neighbor app, created by San Francisco natives Brent Fitzgerald and Huned Botee, sends messages when neighbors need a hand with quick tasks or errands like changing a light bulb or taking out the trash — chores that can be difficult for the elderly or disabled people.

The winners were among 50 engineers and designers from the U.S. and Canada who competed this past weekend in the 24-hour hackathon at the San Francisco headquarters of Change.org, which promotes social change. The event was sponsored in partnership with Code for America, Mashable, the Sunlight Foundation and other organizations, and was intended to challenge developers to create Web and mobile applications to advance social change.

“In just 24 hours the contestants built a series of incredible social good apps and Change.org would like to thank all of the participants for competing,” said Ben Rattray, founder and CEO of Change.org, in a statement. “We look forward to more “Hack for Change” contests in the months and years to come.”

Judges Craig Newmark, the founder of Craigslist; Chris Bishko, investment director for Omidyar Network; and Tasneem Raja, The Bay Citizen’s Web producer, awarded $10,000 in seed funding to the top three finalists.

The first runner-up was Project AnonyMouse, a platform that connects members of the LGBT community with mentors. The second runner-up was FindMeAPet.org, a service that sends a text messages when dogs get added to a shelter in your area.

Follow the Hack for Change conversation on Twitter: @hackforchange.