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E-Cell OC

GreenBill — Your Smart Bill & Expense Assistant

The Problem Managing bills and expenses today is scattered and stressful. We get paper bills, PDFs, email invoices, and app notifications, often losing track of spending patterns. Existing apps either focus on banking or are too complex for everyday users. There’s a need for a single, simple system to track, organise, and understand all expenses from daily bills to subscriptions.

What GreenBill Does GreenBill is a mobile-first solution that uses OCR (Optical Character Recognition) and lightweight ML models to scan bills, extract key details (amount, date, category, merchant), and automatically log them. It goes beyond storage by acting as a personal financial assistant, connecting with apps we already use.

How it Works

  1. Smart Scanning – Snap a photo of any bill; OCR extracts details accurately.

  2. Automatic Categorisation – ML tags expenses (food, transport, utilities, shopping).

  3. Cross-App Integration – Syncs with UPI apps (GPay, PhonePe), food delivery, ride apps, and email receipts.

  4. Unified Dashboard – Displays monthly spend, recurring payments, and category breakdowns.

  5. Smart Reminders – Calendar alerts for bill due dates.

  6. Secure Cloud Storage – Backups via Google Drive/Dropbox.

Why GreenBill Matters Instead of juggling multiple apps, GreenBill gives users a single source of truth for spending. It’s useful for students, professionals, and families, helping them track, save, and plan effortlessly.

Future Vision

  • AI Insights – Personalised suggestions like “Reduce dining expenses by 20% next month.”

  • Smart Saving Goals – Set targets for gadgets, trips, or emergencies.

  • Shared Expenses – Split costs with friends/flatmates.

  • Green Impact Tracking – Track eco-friendly purchases to encourage sustainable spending.

Why I’m Building This As a student, I’ve struggled to manage personal expenses. Using my CS skills (OCR, APIs, ML), I can prototype GreenBill and test it with peers before scaling.

Next Steps

  • Prototype OCR + logging pipeline

  • Build a minimal Android app (Flutter/React Native)

  • Pilot with students for UX & accuracy feedback

Votes: 13
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Comments

  • Great Idea Ritvik! This would really help me manage my finances as my current method uses pen and paper.. integrating with UPI would also save a lot of time from scanning receipts which sounds very helpful.
  • Great idea! GreenBill solves a real pain point by unifying scattered bills into one simple dashboard. The OCR + ML approach with cross-app integration makes it both practical and scalable, and the future vision adds strong long-term value
  • GreenBill is a much-needed fix for the chaos of managing bills and expenses—it brings everything into one clean, smart dashboard. The OCR + ML combo makes tracking effortless, while features like reminders, insights, and cross-app integration make it feel like a true financial assistant. It’s simple, practical, and has real potential to become every student’s go-to money manager.
  • E-Cell OC
    GreenBill is a great idea tackling a real problem of scattered expenses that almost all of us has faced in our life and also with integration of smart features like OCR and categorization is really creative. The cross app integration and reminders stand out. However, the challenge will be ensuring high OCR accuracy and user trust in data security
  • E-Cell OC
    I see GreenBill as a promising app that smartly combines bill scanning, automatic expense categorization, and cross-app integration. The AI insights and reminders make tracking expenses feel effortless. Highlighting data security, focusing on a main audience, and showing what makes it unique could make it even stronger.
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