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Napkin Math

Napkin Math is a personalized AI food journal and nutrition coach designed to help users understand eating habits and achieve health goals.

Freemium · iOS

Napkin Math in short

Napkin Math offers personalized insights without calorie counting, but its intuitive eating focus may lack specific macro tracking for some goals.

What is Napkin Math?

Napkin Math is a personalized AI food journal tool developed by Manuel Castro, Claire Nord, and Jynnie Tang that enables individuals seeking health goals to understand their eating habits and receive personalized nutrition coaching. It focuses on intuitive eating and pattern identification rather than calorie counting. The tool functions as an AI-powered food journal, assisting users in connecting their dietary intake with their physical and emotional well-being over time. Its primary objective is to foster awareness of body responses to food, moving beyond rigid dietary plans or strict numerical tracking. Napkin Math was founded in 2026 and is a Y Combinator company, with continuous development including updates like version 1.0.16 released on May 28, 2026.

Key Features of Napkin Math

Napkin Math provides a suite of features designed to facilitate personalized nutrition understanding and goal achievement, emphasizing intuitive eating and pattern recognition over traditional calorie counting.

  • Personalized AI food journaling for tracking dietary intake.
  • AI-powered nutrition coaching tailored to individual needs.
  • Provides personalized dietary insights based on logged meals and user goals.
  • Sets realistic health goals without requiring calorie counting.
  • Helps users understand eating habits and patterns over extended periods.
  • Identifies specific food triggers and their impact on well-being (e.g., stomach irritation).
  • Optimizes nutrition for specific activities, such as marathon training.
  • Facilitates easy meal logging through photo capture or textual description.
  • Generates weekly recaps with pixelated food photos for aesthetic review.
  • Supports gentle, sustainable dietary changes by building awareness.

Who Should Use Napkin Math?

Napkin Math is designed for a diverse range of individuals seeking to improve their relationship with food and achieve health objectives through a personalized, non-restrictive approach.

  • Individuals aiming to achieve specific health and wellness goals through personalized guidance.
  • Users who want to understand their eating habits and patterns over time without focusing on calorie counting.
  • People looking to identify food triggers or manage specific dietary needs, such as stomach irritation.
  • Athletes or individuals with specific fueling requirements, including optimizing nutrition for marathon training.
  • Individuals seeking a healthier relationship with food, particularly those with a history of disordered eating, due to its non-calorie-counting approach.

Napkin Math Pricing & Plans

Napkin Math operates on a freemium business model, offering core functionalities at no cost. For enhanced features and a more comprehensive experience, users can subscribe to 'Napkin Math Premium.' This premium offering is available through auto-renewing subscriptions, with pricing displayed in the user's local currency directly on the in-app paywall before purchase. Payments are processed via Apple through the user's App Store account.

  • Freemium: Provides basic access to AI food journaling and core features.
  • Napkin Math Premium (Monthly): An auto-renewing subscription for advanced features, with specific pricing presented in-app.
  • Napkin Math Premium (Annual): An auto-renewing subscription offering a potentially cost-effective option for advanced features, with specific pricing presented in-app.

Napkin Math vs Competitors

Napkin Math positions itself as a 'hyper-personalized AI food journal' that distinctly deviates from conventional calorie-tracking applications, emphasizing awareness and intuitive eating. Its competitive advantage lies in tailored insights and a user-friendly experience.

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Napkin Math

Freemium · iOS

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