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FinTrack

A modern, cross-platform mobile application for effortless personal finance management. Built with React Native and Expo, FinTrack empowers users to track transactions, manage multiple wallets, visualize spending patterns through interactive charts, and securely sync data across devices using Firebase.

MobileReact NativeFirebaseFinance
FinTrack

Overview

FinTrack is a comprehensive personal finance management application that helps users take control of their financial life. The app features intuitive transaction tracking, multi-wallet organization, visual analytics with interactive charts, and secure cloud synchronization. Built for iOS, Android, and Web from a single codebase using React Native and Expo SDK 52.

The Problem

Many people struggle to track their expenses across multiple accounts, leading to poor financial awareness and budgeting difficulties. Existing solutions are either too complex, platform-specific, or lack visual insights. Users need a simple, cross-platform app that provides real-time financial visibility without a steep learning curve.

The Solution

FinTrack provides an intuitive, unified platform for managing personal finances across all devices. Users can create multiple wallets, categorize transactions with images, and instantly visualize spending patterns through interactive charts. Firebase ensures secure authentication and real-time data sync, while Cloudinary handles image uploads efficiently. The app's clean UI and smooth animations make finance tracking enjoyable rather than tedious.

Tech Stack

React Native 0.76.5
Expo SDK 52
TypeScript
Firebase Authentication
Cloud Firestore
Cloudinary CDN
Expo Router
React Native Reanimated
React Native Gifted Charts
Phosphor Icons

Key Features

  • Secure Firebase authentication with session persistence
  • Create and categorize income/expense transactions
  • Multi-wallet management with real-time balance tracking
  • Visual analytics with pie and line charts
  • Transaction image attachments via Cloudinary
  • Search and filter transactions by category and date
  • Time-period segmentation (Week/Month/Year)
  • Profile management with photo upload
  • Cross-platform support (iOS/Android/Web)
  • Smooth animations with React Native Reanimated

Challenges

  • Implementing secure user data isolation in Firestore with uid-based filtering
  • Optimizing image uploads to Cloudinary while maintaining app performance
  • Creating smooth cross-platform animations with Reanimated
  • Designing an intuitive multi-wallet system with real-time balance updates
  • Implementing type-safe navigation with expo-router and TypeScript

Results & Impact

Successfully built and deployed a production-ready finance tracking app
Achieved 100% cross-platform compatibility (iOS/Android/Web)
Implemented secure authentication with zero security incidents
Created an intuitive UI with smooth 60 FPS animations
Enabled real-time data sync across all user devices
Built a scalable architecture supporting unlimited transactions and wallets
Comprehensive documentation on DeepWiki for maintainability

Gallery

FinTrack screenshot 1
FinTrack screenshot 2
FinTrack screenshot 3
FinTrack screenshot 4
FinTrack screenshot 5
FinTrack screenshot 6

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