Apps
Engineering Case Study

Interflext (PVT) Ltd

HowToPay POS

A multi-platform POS platform for restaurants, retail stores, and business operations, built to support real daily store workflows across Android, Windows, and Apple devices.

100+ clients supportedProduction

HowToPay POS is a cloud-managed POS system designed for real store operations. It supports remote setup and updates, kitchen workflows, multi-store usage, tax and receipt handling, and high-volume daily selling scenarios.

I joined the Flutter app after the initial build and worked on the harder engineering problems: sync reliability, race conditions, automated operational flows, and performance bottlenecks affecting staff-facing productivity.

HowToPay POS hero preview

Features

6

Stack

5

Screens

16

Product Preview

16 screenshots

What It Does

  • Sales and inventory management
  • Multi-store and product management
  • Real-time reports and analytics
  • Secure and reliable POS workflows
  • Tax and receipt management
  • Simple staff-friendly interface

Built With

FlutterSync workflowsPerformance profilingOperational automationMulti-platform POS