EcoPulse

Carbon Footprint Tracker

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EcoPulse

EcoPulse is a carbon intelligence platform that helps people understand, track, and reduce their environmental impact — powered by AI, real-world emission data, and behavioral science.

Live demo: EcoPulse on bhalla.info

Table of Contents

What it does

EcoPulse gives users a clear picture of their carbon footprint across transport, food, energy, and shopping — and actively helps them reduce it. Users log activities, scan receipts, set goals, and get AI-powered coaching grounded in their actual data.

Features

Activity tracking

Log everyday activities — driving, flights, meals, energy use, and purchases — and get live CO₂ estimates from Climatiq's database of over 1 million emission factors.

AI sustainability coach

Chat with an AI coach powered by Google Gemini. Responses are grounded in the user's real carbon data, not generic advice.

Receipt scanner

Point the camera at a receipt and Google Cloud Vision OCR reads the items. The app then estimates the carbon cost of each purchase automatically.

Carbon simulator

A personal "what if" tool that models the impact of lifestyle changes — switching to public transit, going vegetarian, working from home, and more — before a user commits to them.

Weekly AI reports

Automatically generated summaries that surface personalized reduction opportunities and track progress over time.

Challenges and streaks

Duolingo-style habit-building: join eco-challenges, maintain streaks, earn badges, and see how you rank on a global leaderboard.

Live grid intensity

Real-time electricity carbon intensity from Electricity Maps, so users know when their local grid is cleanest and can time high-energy tasks accordingly.

Tech stack

Layer Technology
Mobile and web React Native, Expo
Language TypeScript
Navigation Expo Router
State management Zustand
Backend and auth Supabase (PostgreSQL with row-level security)
AI coach Google Gemini
Emission estimates Climatiq API
Grid intensity Electricity Maps API
Receipt scanning Google Cloud Vision OCR

Getting started

Prerequisites

  • Node.js 18 or later
  • npm or yarn
  • Expo CLI (npm install -g expo-cli)
  • A Supabase project with the schema from supabase/

Install dependencies

npm install

Run on iOS or Android

npx expo start

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

Run on web

npx expo start --web

Environment variables

Create a .env.local file in the project root and add the following keys:

EXPO_PUBLIC_SUPABASE_URL=your_supabase_project_url
EXPO_PUBLIC_SUPABASE_ANON_KEY=your_supabase_anon_key
EXPO_PUBLIC_GEMINI_API_KEY=your_gemini_api_key
EXPO_PUBLIC_CLIMATIQ_API_KEY=your_climatiq_api_key
EXPO_PUBLIC_ELECTRICITY_MAPS_API_KEY=your_electricity_maps_key
EXPO_PUBLIC_GOOGLE_VISION_API_KEY=your_google_vision_key

License

MIT — built for a greener planet.

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