Case study
Kisasa POS
A multi-user point of sale for Kenyan shops that works with no internet at all: sales, receipts, stock and customers, on a Windows till and Android phones.
- Client
- A private retail owner
- Type
- System
- Industry
- Retail
- Location
- Kenya
The problem
Most point-of-sale apps stop selling the moment the internet drops, which in many Kenyan shops is a daily event. The owner needed a till that keeps working regardless, and lets several staff sell at once.
What I built
- An offline-first design with zero internet dependency: every sale, receipt and stock movement is stored on the device.
- A Windows till as the hub and Android phones as extra selling points for multiple users.
- Thermal receipt and price-sticker printing, barcode scanning with the phone camera, stock and customer records.
- M-Pesa handled the way small shops actually work: reference codes captured at the till and pay-to details printed on receipts.
- Money held as integer cents throughout, so totals never drift.
Outcome
In use by its owner in a working retail business.
Screens
