CICO

Calories In, Calories Out. A simple, friction-free calorie tracking app for iOS and Android. Loosely inspired by Lose It, stripped down to the essentials — no clutter, just calories.

Features

• Daily logging — log meals under Breakfast, Lunch, Snacks, and Dinner, with calories calculated automatically from portion size
• Food search & barcode scanning — search Open Food Facts by name or scan a barcode; results are cached locally for instant future lookups
• Custom foods — add your own foods with calories per 100g and a reference portion
• Weekly dashboard — visual breakdown of calories consumed per day, with optional weight logging
• Personalized goals — a suggested daily calorie target based on your stats (Mifflin-St Jeor BMR + activity level), fully overridable
• Local-first & offline — no account required; all logging works fully offline, with graceful fallbacks when search is unavailable

Tech Stack

Framework	Expo + React Native
Navigation	Expo Router (file-based, tab navigation)
Styling	NativeWind (Tailwind CSS for React Native)
Database	expo-sqlite (local, on-device SQLite)
Language	TypeScript
Food database	Open Food Facts API
Barcode scanning	expo-camera + expo-barcode-scanner

All dependencies are MIT licensed and free to use.

Installation

Prerequisites

• Node.js 18+
• pnpm
• Expo Go app on your phone, or an iOS/Android simulator

Setup

# Clone the repo
git clone https://github.com/isuser/cico.git
cd cico

# Install dependencies
pnpm install

# Start the development server
pnpm start

Then either:

• Scan the QR code with Expo Go (iOS/Android), or
• Press i for the iOS simulator, a for the Android emulator, or w for web

Other scripts

pnpm ios      # open directly in the iOS simulator
pnpm android  # open directly in the Android emulator
pnpm web      # run in the browser
pnpm lint     # lint the project

License

This project is licensed under the MIT License — see LICENSE for details.