0xCal
0xCal is an AI-powered calorie tracking app that uses photo recognition and natural language chat to instantly calculate calories and macronutrients from meals.
https://apps.apple.com/pl/app/0xcal-ai-calorie-tracker/id6749210009?ref=producthunt
Product Information
Updated:Jan 15, 2026
What is 0xCal
0xCal is a modern nutrition tracking application that leverages artificial intelligence to simplify calorie counting and meal logging. The app features an AI assistant named 'gram' that helps users track their food intake through photos or natural conversation. Designed for iPhone users, it offers personalized meal plans, detailed nutrition insights, and seamless integration with Apple Health to help users reach their health and fitness goals.
Key Features of 0xCal
0xCal is an AI-powered calorie tracking app that simplifies food logging through photo recognition and natural language chat. It features a personalized approach to calorie tracking with customizable plans for weight loss, maintenance, or gain. The app includes an AI assistant named 'gram' that instantly calculates nutritional information, integrates with Apple Health, and provides detailed insights through charts and progress tracking.
AI Photo Recognition: Take photos of meals or scan nutrition labels for instant calorie and macro calculation using advanced AI recognition technology
Chat-Based Logging: Natural conversation interface with AI assistant 'gram' that understands food descriptions and converts them into nutritional data
Personalized Goal Planning: Custom calorie budgets and plans tailored to specific goals with options for steady burn, classic cut, perfect balance, or various gain modes
Health Integration & Analytics: Seamless synchronization with Apple Health and comprehensive tracking of progress through charts and insights
Use Cases of 0xCal
Fitness Enthusiast Tracking: Gym-goers and athletes can easily track their macro intake and adjust nutrition plans to support their training goals
Weight Management: People looking to lose, maintain, or gain weight can follow personalized calorie targets and monitor their progress
Busy Professional Nutrition: Quick photo-based logging for professionals who need efficient ways to track their meals during busy workdays
Health Condition Management: Individuals with specific health conditions can monitor their nutritional intake and maintain dietary requirements
Pros
Intuitive AI-powered interface requiring minimal manual input
Flexible logging options through photos or chat
Comprehensive integration with Apple Health
Cons
Requires subscription for full access
Only available for iOS devices
Depends on internet connectivity for AI features
How to Use 0xCal
Download and Install: Download 0xCal from the App Store and install it on your iPhone (requires iOS 18.0 or later)
Start Free Trial: Sign up for the 7-day free trial to access all features
Set Up Profile: Enter your health data and select your goal (lose/maintain/gain weight) to get a personalized calorie budget
Log Food (Photo Method): Take a photo of your meal and let the AI assistant 'gram' automatically calculate calories and macros
Log Food (Chat Method): Simply describe what you ate in natural language to the AI assistant (e.g. 'scrambled eggs with toast and coffee') to get instant nutritional calculations
Track Progress: Monitor your daily calories, macros, weight history, and success rates through the app's tracking features and charts
Connect Apple Health: Sync with Apple Health to import weight, steps and workout data for more accurate calorie targets
Set Up Reminders: Enable customizable notifications to remind you to log your meals
Add Widgets: Add home screen widgets for quick access to the camera or chat logging features
0xCal FAQs
0xCal is an AI-powered calorie tracking app that uses an AI assistant called 'gram' to calculate calories and macros. Users can log their food either by taking photos, scanning nutrition labels, or chatting naturally about what they ate.
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