{"listing":{"listing_type":"company","name":"Napkin Math","slug":"napkin-math","tagline":"AI nutrition coach in your pocket","description":"Napkin Math is the personalized AI food journal that people love to use. We gamify nutrition tracking so people are 2x more likely to stick with us than other trackers. Claire, Manuel, and I (best friends for 10 years from MIT) are obsessed with how we can make nutrition fun, and turn fun into health outcomes.\n\n===\nExisting consumer health apps focus on scaling a one-size-fits-all solution: calorie deficits. But they don’t answer the questions you actually have.\n\nFood is deeply personal, and so is Napkin Math:\n\nGet the fuel you need for marathon training, while understanding you eat catered office lunches five days a week. Discover what’s triggering your stomach irritation, without sacrificing your weekly dinner with friends. Napkin Math tailors a plan for not only your specific health goal, but also your life.\n\nNapkin Math is a Y Combinator company (Spring 2026). YC-listed status: Active.","url":"https://napkinmath.club/","is_stealth":false,"normalized_domain":"napkinmath.club","normalized_url_key":"napkinmath.club","parent_slug":null,"parent":null,"type_data":{},"logo":"https://bookface-images.s3.amazonaws.com/small_logos/43a02b84a6b28b5fb26796fe822a596c638d433c.png","links":[{"label":"Y Combinator profile","url":"https://www.ycombinator.com/companies/napkin-math","platform":"ycombinator"}],"entry_points":[{"kind":"homepage","url":"https://napkinmath.club/","audience":"any","primary":false,"listed_by":"community","derived_from":"url","on_listing_domain":true}],"primary_entry_points":{"human":{"kind":"homepage","url":"https://napkinmath.club/","audience":"any","primary":false,"listed_by":"community","derived_from":"url","on_listing_domain":true},"agent":null},"founders":[],"media":null,"categories":["Consumer"],"stage":null,"founded_year":null,"location":"San Francisco, CA, USA","pricing":null,"twitter":null,"github":null,"linkedin":null,"contact_email":null,"added_at":"2026-09-03T08:26:20.964Z","added_via":"web","geo":{"keywords":["Y Combinator","YC Spring 2026"],"one_liner_for_search":"Napkin Math — AI nutrition coach in your pocket (Y Combinator Spring 2026)","canonical_facts":["Y Combinator batch: Spring 2026","YC company status: Active","Team size (per YC directory): 3","YC industry: Consumer","YC subindustry: Consumer","Former names: Paper Star","Regions (per YC): United States of America, America / Canada"]},"agents":null,"featured_until":null,"example":false,"ownership_status":"unclaimed","claimed_by_agent_id":null,"claimed_via_claim_id":null,"claimed_at":null,"updated_at":"2026-09-03T08:26:20.964Z","is_featured":false,"category_memberships":[{"kind":"industry","slug":"consumer","name":"Consumer","note":null,"profile_url":"/industries/consumer"}]}}