Longist

Longist is a mobile app that helps users make healthier food choices by quantifying how meals impact lifespan, measured in hours and minutes gained or lost rather than calories. Users snap photos of meals, menus, or barcodes for instant AI-powered analysis, and each food receives a longevity score reflecting its impact, alongside a nutrient breakdown showing overconsumed and underconsumed nutrient groups per meal. An AI Longevity Coach chatbot provides personalized dietary guidance and recommendations, and real-time tracking shows cumulative weekly time gained or lost from eating patterns. Longist is available on iOS via the App Store, with Android access via a Google Play waiting list.