Wildfire (acquired by Opendoor)

Wildfire (YC S17) is a real-time news alert app for colleges that makes it easy to spread the word about important events nearby (ranging from safety, events, tips, and general chatter). Wildfire grew to hundreds of thousands of college students across the country and ranked Top 5 in the “News Category” right below Twitter, Reddit, and Nextdoor and above CNN and the New York Times. Selected for Forbes 30 under 30 in 2020, and investors include Accel, Khosla, Greylock, Redpoint, Y Combinator, and Paul Buchheit.