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Fuel Launches Apple Watch-First AI Nutrition Coaching App

Fuel is a performance nutrition app built around Apple Watch and HealthKit. Founded by Stephen M. Walker II, who spent years building a leading fitness app and went deep into the world of self-tracking, Fuel was created to solve a persistent problem: health tools that collect data but fail to turn it into decisions.

Fuel uses Apple Watch energy data, weigh-ins, and recovery metrics to set personalized calorie and macro targets that update based on real activity. Meals can be logged instantly through photo, text, or voice with AI that identifies foods, estimates portions, and calculates macros in seconds. Natural language corrections make adjustments fast when the AI gets something wrong.

Beyond logging, Fuel delivers adaptive coaching. A personalized daily recap reviews the previous day and sets intent with concrete nudges. A weekly action plan provides a full scorecard based on real adherence. A live performance grade updates throughout the day as users move and log meals, and a goal timeline recalculates completion dates based on actual progress.

Fuel is designed with privacy at its core. The app has no user tracking and does not store personal data on external servers. All health information stays on device, and data ownership belongs entirely to the user.

Since launch, Fuel has earned a 4.9 App Store rating worldwide and was featured as Apple App of the Day. The app is available for free with a Pro tier that unlocks analytics, AI features, full workout history, and enhanced insights.

For more information, visit fuelnutrition.app or follow @fuel_ai on X and @fuelnutrition_app on Instagram.

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Short Description

Apple Watch-first nutrition coaching that keeps calorie targets honest with watch energy, weigh-ins, and recovery in one clean dashboard.

Long Description

Performance nutrition intelligence powered by Apple Watch. Transform how you eat, train, and recover with real-time energy tracking, AI-powered meal logging, and adaptive coaching that makes every decision count.

Key Stats

• 4.9 App Store rating (worldwide average)
• Apple App of the Day feature
• Free and Pro tiers available
• Apple Watch companion app
• AI-powered meal logging via photo, text, and voice
• Daily and weekly adaptive coaching

About the Founder

Stephen M. Walker II is the founder of Fuel. Before Fuel he co-founded Klu.ai, an AI infrastructure platform for optimizing LLM-powered apps. He previously served as Head of Product and Design at Freeletics, where the digital fitness app scaled to 50 million users across 100+ countries. Before that he held product and design leadership roles at Productboard, Amazon, and Capital One.

He spent years deep in the world of self-tracking, logging everything from sleep and nutrition to training and blood markers. He tried nearly every app and device available. Through that experience, he identified a core problem: tracking was slow, food databases were messy, insights were shallow, and feedback loops were weak. Fuel was built around a simple belief: if tracking is effortless and the feedback is meaningful, people will keep going.

Contact

For press inquiries, visit fuelnutrition.app/contact.