Yavin Songkham
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Khanomjeeb POS

The till, stock book and accountant for our dumpling stall — works offline at the market and syncs across phones when back online.

Developer2026In daily use
Khanomjeeb POS
3payment types: cash, QR, credit
6sections from selling to AI insights
100%usable without signal
The problem

A real stall, real prices. I built the POS we sell with every day, installable to the phone home screen.

What it does & how it works

Inside Khanomjeeb POS

Selling

Selling

  • Big tiles, bundle deals like "any 3 for ฿25", custom amounts.
  • Cash, PromptPay QR or credit; pre-orders with pickup times.
Money and stock

Money and stock

  • Expenses with backdating; profit for today, week, month and a calendar of past months.
  • Ingredient price history, refill predictions and price-jump alerts.
  • Cash count vs expected, with the difference recorded.
Sync that survives a market

Sync that survives a market

  • Offline-first; syncs every few seconds across phones without wiping a half-built order.
  • Ask the AI in Thai what sold best or what to restock.
  • PIN for edits, CSV export by date.
More screens

Gallery

Expenses
Expenses
Stock
Stock
How it is built

Stack

React PWAVercel Blob syncPromptPay QRAI assistant

Private business app — demo on request.

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