Longist

Longist, described on its website as the Biohacker's Longevity Toolkit, is a weight-loss-branded longevity app that shifts the focus from calories to how food choices affect healthy lifespan. Users snap a photo of a meal, a restaurant menu, or a barcode to see how each ingredient adds or subtracts minutes of life, view a breakdown of overconsumed and underconsumed nutrient groups, and receive guidance on choices at home or when eating out. The site states that Longist connects with Apple Health via HealthKit to bring in metrics such as steps, heart rate, and sleep, and says health data stays on the device. Features include real-time longevity scoring, menu scanning, progress tracking across meals and habits, a leaderboard against friends and the global community, and an AI Longevity Coach (listed as a premium feature). The site says scores are based on research from academic institutions and on the Health Nutritional Index from a Nature Food study covering over 5,800 foods. The FAQ states Longist does not track calories or macros and focuses on longevity rather than weight loss. The app is described as available to download, with a three-day free trial and paid monthly and annual plans.

Key features

• Snap a photo of a meal, restaurant menu, or barcode to see how ingredients add or subtract minutes from lifespan
• Instant breakdown of overconsumed and underconsumed nutrient groups from a dish photo
• Menu scanner and dish analysis to rank dishes by longevity impact
• Real-time longevity scoring of meals
• AI Longevity Coach for personalized guidance on what to eat, when, and how much (premium feature)
• Apple Health (HealthKit) integration for steps, heart rate, and sleep data
• Tracking of weekly impact of daily habits, including meals, recovery, and stress
• Food history tracking of how each food choice affects lifespan over time
• Leaderboard to compare healthy minutes earned against friends and the global community
• Impact breakdown by organ systems such as heart, brain, and gut

Best suited for

• Users who want to see how meal choices affect healthy lifespan
• People eating out who want to choose dishes from a menu
• Biohackers and quantified-self users who already track biometric data
• Users who want nutrition feedback without calorie or macro counting

Pricing

Monthly plan at $24.99/month; annual plan at $179.99/year; a three-day free trial is listed alongside a free plan with the same feature list.