BACK TO PORTFOLIO
Case Study — MOBILE

PakChat

Real-Time Messaging Mobile App for Emerging Markets

Real-Time Messaging Mobile App optimized for emerging markets with low-data consumption.

ClientPakChat
IndustryCommunication & Social
OutcomeHigh-performance, low-bandwidth messaging experience with offline-first capabilities for emerging markets.
Timeline
MVP Phase
Platform
Mobile (React Native)
Status
Deployed & Live
Project Overview

What We Built

PakChat is a lightweight, real-time messaging application targeting users in Pakistan and similar emerging markets where low-data consumption, multilingual support, and unreliable network resilience are critical constraints.

Desktop View

[Desktop Screenshot]

Mobile View

[Mobile Screenshot]
The Challenge

Problem Statement

Existing messaging platforms are heavily optimized for global bandwidth conditions, increasingly complex, less efficient on low-end Android devices, and not localized for regional UX patterns.

Our Solution

How We Solved It

We built a WhatsApp-style communication layer with offline-first messaging, WebSocket scaling backed by Redis pub/sub, aggressive media compression pipeline using FFmpeg, and virtualized lists for low-end device performance.

Capabilities

Key Features

One-to-one chat and Group chats
Offline queueing with store-and-forward sync
Image/video sharing with compression pipeline
Public channels and community groups
Urdu + English bilingual UI with RTL support
Voice notes with optimized codec
Outcomes

Measurable Results

Optimized
Network Latency
Minimal
App Footprint
-60%
Media Bandwidth
End-to-End
Architecture
Engineering

Tech Stack

Frontend / UI
React Native (CLI) · TypeScript · Zustand
Backend / API
Node.js (NestJS/Express) · WebSockets · Redis
Database / ORM
PostgreSQL (Core) · SQLite / WatermelonDB (Local)
Authentication
Supabase Auth / JWT
Hosting / Deployment
Cloudflare (CDN)
Tools & Integrations
FFmpeg (Compression)React Query
Value Delivered

Client Benefits

Offline-first queue and retry system for poor network stability
High performance on low-end devices with minimal re-renders
Reduced media bandwidth cost via aggressive compression
Sharded conversation channels for group chat load balancing
Ready to Scale?

Let's Build Together

Want a similar solution tailored to your business? Let's talk. Our engineers will walk you through the architecture, timeline, and investment — no fluff, no sales pitch.

💬 Chat with us on WhatsApp