Calorie Counter
AI calorie tracker with GPT-4 Vision food recognition and intermittent fasting
Screenshots
Client
Health tech startup building a calorie tracking app with multiple localizations. Wanted AI-powered food recognition to eliminate manual entry.
Problem
Manual calorie tracking is tedious. Users abandon apps because entering every meal takes too long. Existing AI solutions are either inaccurate or too expensive per request. The client also wanted intermittent fasting tracking in the same app, plus accurate TDEE calculation based on user profile.
Solution
SwiftUI app with MVVM architecture, SwiftData for local storage, Firebase for auth and sync. AI food recognition via OpenAI API: three input methods (camera, voice, text) return structured nutritional data. Intermittent fasting tracker with timer and progress visualization. Personalized onboarding that calculates individual nutrition norms. HealthKit integration. StoreKit 2 subscriptions.
Results
- +Live in App Store
- +AI food recognition: photo to nutritional data in 2-3 seconds
- +3 input methods: camera, voice, text
- +Intermittent fasting tracker with preset and custom fasting goals
- +Personal TDEE calculation from 9-step onboarding quiz
- +Full MVVM architecture with clean codebase
Role & timeline
Lead iOS Developer. SwiftUI, AI integration, Firebase backend, StoreKit 2. January - September 2025