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Nebras.

Kassa

  • Flutter
  • Dart
  • PHP
  • MySQL
  • Firebase

A point-of-sale app for small shops: fast checkout, a product catalogue, staff accounts and sales tracking, simple enough for any seller.

Kassa home screen with shortcuts to add a product, start a sale, products, reports, workers and licence info
Mission
Give small shops a cash register on a phone that any seller can use without technical training.
Built with
Flutter, Dart, PHP, MySQL, Firebase
My role
Mobile app and admin interface · 2025

The problem

Small shops need to take payments quickly and keep track of what they sell, but most point-of-sale tools assume trained staff. Kassa had to stay simple enough for any seller to pick up.

What we built

At Jasper Tech we built the Kassa mobile app and its admin interface.

  • Fast checkout
  • Product catalogue management
  • Staff management
  • Sales tracking

The interface is deliberately plain, so a seller can use it without technical training.

Kassa splash screen: the app logo with the line "Modern POS System"Kassa

The Add Product form with name, barcode, price and quantityAdding a product

Kassa is online at kassa-p.web.app.

The stack

Flutter and Dart for the app, PHP and MySQL on the server, and Firebase.

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