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MacroZone

MacroZone is a React Native app for tracking daily calories and macronutrients (protein, carbs, fat). Log meals, see progress against your goals on the home dashboard, and optionally enable meal reminders.

MacroZone home screen showing macro summary, meal reminders toggle, and recent meals

Features

  • Dashboard — Daily totals for calories, protein, carbs, and fat with color-coded progress against configurable goals.
  • Meals — Add meals with macros; browse and manage the full list on a dedicated tab.
  • Local storage — Meals persist on device with AsyncStorage.
  • Sharing & clipboard — Share a summary or copy it for quick paste elsewhere.
  • Meal reminders — Optional local notifications when enabled.

Tech stack

  • Expo SDK 55
  • Expo Router (file-based tabs)
  • React 19 / React Native 0.83
  • TypeScript
  • @react-native-async-storage/async-storage, expo-notifications, expo-clipboard

Requirements

  • Node.js (LTS recommended)
  • npm or another compatible package manager
  • For device builds: Expo Go or a dev client; for store builds, EAS Build (see eas.json)

Getting started

Clone the repository, install dependencies, and start the dev server:

npm install
npm start

Then press i for iOS simulator, a for Android emulator, or scan the QR code with Expo Go on a physical device.

Scripts

Command Description
npm start Start Expo dev server
npm run ios Start with iOS target
npm run android Start with Android target
npm run web Start web target
npm run lint Run Expo lint

Project layout

  • src/app/ — Expo Router routes and layouts ((tabs) for Home, Add Meal, All Meals).
  • src/components/ — UI pieces (macro grid, meal rows, header, toggles, share/copy).
  • src/storage/ — AsyncStorage helpers for meals.
  • src/utils/ — Notifications and related utilities.
  • assets/ — Images, icons, and splash assets.

License

Private project ("private": true in package.json). Adjust licensing if you open-source the repo.

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Nutrition calories tracker react native app

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