# FinTrack Pro

**Canonical page:** <https://www.devarps.com/case-studies/1>  
**Category:** Mobile App  
**Client:** FinTech Solutions Ltd  
**Timeline:** 4 Months  
**Role:** Full-Stack Dev

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## Summary

A comprehensive personal finance tracker built with Flutter. Features real-time bank syncing and AI-driven spending insights.


**Highlights:**
- Users: 50k+
- Rating: 4.9/5


## Challenge

The client faced a severe retention issue. Users were downloading their previous app but abandoning it after 3 days because manual entry of expenses was too tedious. They needed a seamless, automated way to track finances without compromising bank-grade security.

## Solution

We engineered a secure middleware using Plaid for real-time bank connections, ensuring users never had to manually input a transaction again. We paired this with a Flutter frontend for 60fps performance on both iOS and Android, and implemented on-device encryption to ensure user data never touched our servers unencrypted.

## Results

- **User Growth:** +300%
- **App Store Rating:** 4.9/5
- **Transactions:** 1M+
- **Crash Rate:** <0.1%

## Tech stack

Flutter · Dart · Node.js · Plaid API · AWS Lambda

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