Diet App
A daily diet companion that learns from your habits and suggests improvements without the friction.
Nutrition-First Fitness Assistant with Meal Planning, Daily Progress & Intelligence
Metaviz AI built DietApp — a next-generation nutrition and calorie intelligence platform inspired by YAZIO. DietApp allows users to log meals instantly (barcode, search, or photo), follow personalized meal plans, track macros, schedule fasting, sync wearables, and visualize progress through smart nutrition analytics.
This project shows how AI + nutrition science can merge into one flexible app experience. Metaviz AI shaped a complete ecosystem that blends user habits, biometrics, diet patterns, and calorie math — into one adaptive flow that evolves with user progress.

From Concept to Adaptive Nutrition Engine
DietApp was built around one truth: nutrition data is useless if it isn't easy to log. Our process focused on removing friction at every step of the user's daily diet flow.
Consultation & Requirement Discovery
We identified core user needs — instant meal logging, personalized calorie targets, fasting flexibility, and macro visibility.
Consultation & Requirement Discovery
We identified core user needs — instant meal logging, personalized calorie targets, fasting flexibility, and macro visibility.
Design & Development
We designed a quick-log diary, barcode scanner, and recipe-based meal planner that adapts to user goals and preferences.
Design & Development
We designed a quick-log diary, barcode scanner, and recipe-based meal planner that adapts to user goals and preferences.
Fasting & Wearable Sync
Metaviz AI implemented fasting timers, hydration reminders, and wearable integrations for automated calorie recalculation.
Fasting & Wearable Sync
Metaviz AI implemented fasting timers, hydration reminders, and wearable integrations for automated calorie recalculation.
Testing & Optimization
Stress testing ensured high performance — especially in food DB search, barcode scanner accuracy, and progress chart rendering.
Testing & Optimization
Stress testing ensured high performance — especially in food DB search, barcode scanner accuracy, and progress chart rendering.
Deployment & Premium Models
We implemented in-app subscriptions with secure payments and launched stable builds on iOS + Android.
Deployment & Premium Models
We implemented in-app subscriptions with secure payments and launched stable builds on iOS + Android.

Nutrition Data Is Useless If It Isn't Easy To Log
Most calorie apps fail because logging takes too much time. Diet habits are fragile — friction kills consistency.
Existing tools were fragmented: fasting in one app, macros in another, recipes somewhere else, wearable sync in a separate ecosystem. Users needed everything in one place — fast, visual, personalized.
A Complete Diet + Progress Engine In A Single App
DietApp consolidates fasting, macros, recipes, and wearable sync into a single Flutter / React Native app — every feature designed to remove friction from daily logging.
Ultra-Fast Food Logging
Barcode scanner, search, or optional photo capture — log meals in seconds, not minutes.
Personalized Meal Plans
AI-curated meal plans and recipes tailored to dietary preferences, allergies, and calorie targets.
Fasting Modes
Built-in fasting timers and reminders — 16:8, OMAD, custom windows — all tracked in one place.
Progress Analytics
Weight, macros, and nutrient trends visualized in clean, motivating charts.
Wearable Sync
HealthKit, Google Fit, Fitbit, and Withings integration — auto calorie adjustment based on activity.
Built for real operators
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Discuss Your Idea TodayBuilt with a modern AI stack
- React Native or Flutter — cross-platform iOS and Android
- Native barcode scanning SDK or ML-based scanner
- Node.js / FastAPI with PostgreSQL or MongoDB
- Custom food database + Edamam / Spoonacular integration
- Firebase Auth / AWS Cognito + S3 / Firebase Storage
- HealthKit, Google Fit, Fitbit, Withings — full wearable sync
- MPAndroidChart / Victory / Recharts for progress visualization
- Stripe + App Store / Google Play billing for subscriptions
- GPT-4o (optional) for meal swaps and recipe variants
Why Metaviz AI for Nutrition-Driven App Innovation?
We specialize in habit design and automation based on daily patterns. DietApp is proof — small UX detail changes create large impacts in compliance and retention.
We build fitness platforms that feel natural, not forced — and we architect systems that evolve with future feature sets, AI integrations, and user-base scale.
Outcomes that move the business
Frictionless Logging
Barcode + search makes logging take seconds, not minutes — habit consistency rises sharply.
Smarter Nutrition Control
Personalized plans and recipes make eating structured yet flexible — adapted to each user's needs.
Data-Driven Habits
Macro charts and nutrient curves help users stay consistent with clear visual feedback.
Higher Retention
Badges, streaks, and fasting cycles keep motivation steady week after week.
Unlock Nutrition Intelligence with DietApp
DietApp merges daily eating, fasting, activity, and visual metrics into a simple mobile experience — powered by dynamic calorie math and adaptive nutrition logic.
Fast Meal Logging
Barcode, search, or photo — log in seconds without breaking your flow.
Personalized Meal Plans
AI-curated plans that adapt to your dietary preferences and calorie targets.
Fasting Tracking
Built-in timers and reminders for 16:8, OMAD, and custom fasting windows.
Wearable Syncing
HealthKit, Google Fit, Fitbit, Withings — one source of truth for activity and calories.
Adaptive Nutrition for Every Lifestyle
DietApp is architected for evolution — built with modular React Native / Flutter and a flexible backend that supports growing feature sets, AI integrations, and global user bases.
From fast meal logging to advanced wearable analytics and AI recipe generation, DietApp scales with each user's journey — turning daily nutrition into a sustainable habit.



