In a bid to rival Zillow’s formidable New York City-focused real estate portal StreetEasy, CoStar Group has launched Citysnap, in partnership with the Real Estate Board of New York, whose Residential Listing Service feed will provide rental and sale listings to the site. Since it jumped into the residential real estate sales side of the industry with its acquisition of Homesnap in December 2020, CoStar Group has been vocal about viewing Zillow as a competitor. The launch of Citysnap brings the competition into a local focus in New York City. Rental and for-sale listings of REBNY members will appear on the portal at no cost; StreetEasy charges agents to display rental and for-sale listings.