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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

  • Loved the idea, very relatable. GreenBill sounds like the kind of simple, smart assistant that would make everyday money management so much less stressful.
  • This is a really useful idea! I like how it combines OCR, ML, and app integrations to make expense tracking simple and organized. Features like smart reminders, dashboards, and AI insights seem very practical. Overall it’s a solid and user-friendly solution.
  • GreenBill stands out because it makes expense tracking lightweight and student-friendly instead of overly complex. What challenges do you anticipate in scaling integrations with different payment and delivery apps?
  • E-Cell OC
    This idea really clicks. Everyone struggles with scattered bills, and you’ve come up with a clean, useful way to handle it. Testing it with students first is such a smart move. Wishing you all the success in building this out!
  • E-Cell OC
    GreenBill is a smart, practical solution that helps us keep a track of our expenses. The key challenge will be ensuring strong data privacy, but if handled well, it could make managing money effortless for students and young professionals.
  • The idea of cross-app integration is smart. It makes GreenBill more useful than just a bill scanner—it becomes a personal finance hub.
  • GreenBill is a clever and exciting solution that makes bill management effortless through scanning, categorisation, and app integration is perfect for students and professionals. Its real impact will occur if it can overcome OCR accuracy and privacy concerns to truly stand out from existing apps!
  • Its a great app for keeping expenses in track. Budgeting often becomes difficult as we often forget to log expenses so the self working system is really amazing. It is really cool and interesting idea.it is very very helpful and easy to use too
  • This is super useful, managing bills is such a headache, and having everything organised in one place would make life so much easier.
  • E-Cell OC
    A very thoughtful idea for those who cannot manage bill on their own , like the elderly . Great work
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