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.

- 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
Adding 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.

