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Case Study
Zacta
Crystal
3 Min read

The Smarter Way to Split Bills with AI-Powered Receipt Scanning

Zacta is a modern bill-splitting app that uses AI to extract receipt items, split costs fairly, and sync group expenses instantly. With smart item assignment, flexible split methods, and Venmo payments, Zacta eliminates the friction of settling bills—accurately and effortlessly.

industry
Banking & Finance
Services
Mobile App Development, AI Integration, Backend Engineering, Realtime Systems

Introduction

Splitting bills is one of the most common frustrations among friends, travelers, and families. Manual calculations, lost receipts, and inconsistent expense tracking often create confusion and delays.

Zacta set out to solve this by building a smart, AI-first expense sharing app that could:

  • Scan and extract itemized receipt details automatically

  • Split bills by quantity, percentage, or fixed amount

  • Allow groups to collaborate in real time

  • Assign items to members with accurate calculations

  • Let users settle balances instantly via Venmo

The Challenge

Building Zacta required solving several complex technical challenges:

  • Making AI/OCR reliably extract items from receipts of any layout or image quality
  • Keeping group expenses perfectly synced in real time using Supabase
  • Ensuring precise cost calculations across multiple split methods
  • Allowing multiple users to edit, assign, and confirm items simultaneously
  • Handling edge cases like missing totals, misread items, and tax mismatches

Our Approach

We engineered Zacta as a modular, AI-powered mobile app designed for accuracy, speed, and ease of use.

AI-Powered Receipt Scanning

OpenAI interprets receipts and outputs clean, structured item data—no manual entry required.

Real-Time Group Expense Sync

Supabase ensures instant collaboration—every member sees updates immediately.

Flexible Bill Splitting

Users can divide expenses by quantity, percentage, or fixed amount.

Smart Item Assignment

Just tap to assign items to group members; calculations update automatically.

Venmo Integration

Balances can be settled in a single tap using Venmo’s secure payment flow.

Bring Your AI-Powered Mobile App Idea to Life

From real-time collaboration to intelligent scanning and fintech integrations, 7Span helps you build apps that users love.

The Impact

60%

Less Manual Entry AI scanning eliminates the need to type item details, saving time and reducing errors.

2x

Faster Group Settlements venmo integration and clear item-level breakdowns accelerate payment resolution.

75%

Improved Split Accuracy smart item assignment and flexible split logic ensure fair, transparent calculations. 

Higher

User Satisfaction real-time sync keeps groups aligned, reducing confusion and back-and-forth messaging.

Making IT Possible

Making IT Possible

Making IT Possible

Making IT Possible

Making IT Possible

Making IT Possible

India (HQ)

201, iSquare Corporate Park, Science City Road, Ahmedabad-380060, Gujarat, India

Canada

24 Merlot Court, Timberlea, NS B3T 0C2, Canada

For Sales

[email protected]

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