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Fud AI

Categories: Productivity, Healthcare  |  Pricing: Freemium  |  Official Website ↗

Fud AI is a free, open-source AI calorie tracker for iPhone and Android that logs calories, macros, and nutrients from photos, scans, text, or voice.

Fud AI is a free, open-source AI-powered calorie and nutrition tracker available for iPhone and Android. Users can log meals by snapping a photo, scanning a barcode, typing, or speaking, and the app estimates calories, macros, and over 30 nutrients. It allows users to review and confirm all nutritional data before logging. The app features a daily progress ring for calories and pillars for protein, carbs, fat, fiber, and water, with widgets for quick access. It also includes an AI Coach that provides personalized advice based on the user's logged meals, weight trends, and workouts. Fud AI supports a "Bring Your Own AI" model, allowing users to use their own API keys from various AI providers like Gemini, OpenAI, and Claude, ensuring data privacy as information goes directly to the chosen provider. Optional Plus and Pro plans are available for users who prefer not to manage their own keys. Additional features include barcode scanning via Open Food Facts, support for 18 languages, customizable themes, water tracking, intermittent fasting timers, and integration with Apple Health and Health Connect. It also offers Siri Shortcuts for logging on iPhone, saved meals, and a "What if?" feature to preview meal impacts.

Key Features

• AI-powered food logging (photo, voice, text)
• Barcode scanning
• Calorie, macro, and 30+ nutrient tracking
• AI Coach for personalized advice
• Daily progress tracking (calories, macros, water)
• Widgets for Home Screen, Lock Screen, Apple Watch
• Intermittent fasting timer
• Apple Health and Health Connect integration

Pros

• Free to use with no ads or subscriptions (with BYOK)
• Open-source and MIT licensed for transparency
• Prioritizes user privacy with no account or cloud sync by default
• Supports various input methods for logging (photo, voice, text, barcode)
• Offers an AI coach that provides personalized advice based on user data

Cons

• Requires users to obtain and manage their own AI API keys for full functionality (unless on paid plans)
• Optional paid plans are not detailed on the main website
• Needs iOS 17.6+ or Android 8.0+ which might exclude older devices
• Fasting history is local and does not sync with Health apps
• No web interface, only mobile apps

Use Cases

• Daily calorie and macro tracking
• Monitoring nutrient intake from meals
• Receiving personalized dietary advice from an AI coach
• Tracking intermittent fasting periods
• Syncing nutrition data with Apple Health or Health Connect

Best For

• Individuals seeking a free and private calorie tracker
• Users comfortable with managing API keys for advanced AI features
• Health-conscious individuals tracking detailed nutrition and macros
• Developers interested in open-source health applications

Integrations: Gemini, OpenAI, Claude, Grok, Mistral, DeepSeek, OpenRouter, Groq, Ollama, Hugging Face

Platforms: iOS, Android, Apple Watch

Watch demo on YouTube ↗

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