FairMPOS — book fair billing app with barcode scanner, offline billing and mobile POS by WASS
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Book Fair POS App · 2025

FairMPOS — The Book Fair Billing App Built for the Floor

Intelligent barcode scanning, pre-set discounts, offline billing and mobile POS — designed for book fairs, school fairs and retail pop-ups with zero training required.

FairMPOS — by WASS

Android + Web

Platform

Online + Offline

Billing mode

Minutes

Setup time

Minimal

Training required

Intelligent

Barcode scanning

Configurable

Discount presets

Project screenshots

FairMPOS features — barcode scanner, discounts and offline billing overview

Download & try it

Download the Android app from Google Play or open the web version to explore FairMPOS live.

Project overview

React NativeReactNode.jsPythonGoogle Cloud

POS · Book Fair · Mobile App · Offline Billing

FairMPOS is designed to be easy to use and adaptable to your fair's needs. While we offer a personalised onboarding process to ensure a smooth setup, FairMPOS's intuitive features require minimal training. Our functionalities, like the intelligent barcode scanner, pre-set discounts, and offline billing capabilities, are built to streamline your fair's operations right from setup.

Running a book fair counter means dealing with high footfall, rapid transactions, inconsistent internet connectivity and the constant pressure of long queues. FairMPOS solves all three: the intelligent barcode scanner reads ISBN barcodes instantly, pre-set discount rules apply automatically at the point of sale, and the offline billing engine keeps the counter running even when the internet drops — syncing all transactions when connectivity is restored.

FairMPOS works as both a mobile Android app and a web application, so your team can run counters from phones, tablets or laptops — whatever hardware is available at the fair. The app integrates directly with the WASS Book Trade ERP, meaning stock levels update in real time across all counters and the day's sales post to the accounting ledger automatically at close.

The personalised onboarding process means your title catalogue, discount structures and counter configuration are set up before the fair opens — not on the morning of day one. Every transaction is logged with a full audit trail, and end-of-day reports give the fair manager a complete picture of sales by title, category, counter and payment method.

What was built

Intelligent barcode scanner — instant ISBN lookup with title, price and stock
Pre-set discount rules — category, title, quantity and coupon-based discounts
Offline billing — full POS functionality without internet, auto-sync on reconnect
Mobile Android app — run counters from phones and tablets
Web app — run counters from any browser on laptops or desktops
Real-time stock sync across all counters at the fair
ERP integration — sales post to Book Trade ERP accounting automatically
Multiple payment modes — cash, UPI, card and split payment
GST-compliant receipts — printed and digital (WhatsApp/email)
End-of-day reports — sales by title, category, counter and payment method
Personalised onboarding — catalogue, discounts and counters configured before go-live
Full audit trail — every transaction stamped with user, counter, timestamp

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