Cornerproof scores café blocks in four Manhattan study areas and one Downtown Brooklyn study area, and shows the evidence and gaps behind every score. Ratings use dated public data on offices, transit, residents, nearby cafés and other signals. Missing evidence is named, never counted as zero. The map is free with an account, and your first block unlock is free. Three more unlocks are $49, and a full report is $99. London rankings are experimental, unvalidated, and have no report on sale.