What makes Nano POS the best POS system in Sri Lanka?

Nano POS is engineered with a 100% offline-first architecture using local database caching. Unlike cloud-only POS systems that freeze during internet outages, Nano POS processes sales, prints thermal receipts, and scans barcodes continuously with zero downtime, automatically synchronizing to the cloud when internet restores.

Are there any monthly subscription fees or cloud rentals?

No. Nano POS offers a one-time perpetual lifetime license with zero mandatory monthly rentals. You own your system and your data without being locked into expensive monthly subscriptions.

Does Nano POS support thermal receipt printers and barcode scanners in Sri Lanka?

Yes. Nano POS seamlessly supports all standard 58mm and 80mm thermal receipt printers (Xprinter, Epson, Bixolon, POSIFLEX), USB/Bluetooth 1D and 2D barcode scanners, electronic cash drawers, customer-facing displays (CFD), and kitchen display systems (KDS).

Can Nano POS track credit customers and automated payment due dates?

Yes. Nano POS features an integrated Credit Customer CRM ledger with approved credit limits, payment term windows (e.g. 14 days), automated email due reminders via Brevo, and official payment settlement receipts.

Does Nano POS provide digital warranty tracking for sold products?

Yes. Every hardware or electronic item billed through Nano POS can be verified online by customers at www.nanosonic.lk/warranty using their invoice number, serial number, or phone number.

100% Offline-First POS System in Sri Lanka • Zero Monthly Rental

Smart, Offline-First
POS Billing System in Sri Lanka

Engineered for Sri Lankan Supermarkets, Retail Shops, Restaurants, Hardware Stores & Pharmacies. High-speed barcode billing, thermal receipts, automated stock deduction, and digital customer warranty tracking — with zero downtime during internet outages.

Launch Live POS Web Demo

WhatsApp Instant Quote

0 sec

Internet Downtime (100% Offline)

Rs. 0

Monthly Cloud Rental Fees

58/80 mm

Thermal Receipt & A4 Invoices

100%

Local Sri Lanka Support & Warranty

Tailored Business Solutions

Engineered for Every Sri Lankan Retail & Hospitality Sector

Select your industry sector below to see how Nano POS optimizes your operations.

Retail & Supermarkets

High-Speed Barcode Billing for Retail & Groceries

Speed up cashier checkouts with sub-second barcode scanning, item discounts, scale integration, and instant 58mm/80mm thermal receipt printing. Keep selling smoothly even if Dialog, SLT, or mobile network disconnects.

Sub-second USB & Wireless Barcode Scanner support

Multiple payment modes: Cash, Card, Bank Transfer, Koko

Low stock warning alerts and automated inventory tracking

Cash drawer kick trigger upon payment completion

Daily cashier shift reports with drawer balance audit

POS Terminal ViewOnline & Ready

Barcode Scan Rate:0.02s per item

Thermal Printer:ESC/POS 58mm / 80mm

Cash Drawer Kick:Automatic (RJ11/12)

Database Engine:Dexie IndexedDB (Local)

Cloud Sync Protocol:MongoDB Atlas Live Sync

Test Terminal Demo Inquire Package

Engineered Architecture

Why Nano POS Outperforms Generic Cloud Systems

Built from the ground up for the realities of Sri Lankan business infrastructure.

100% Offline-First Architecture

Never lose a customer sale due to internet disconnection. Local database caching guarantees cashiers continue billing smoothly, syncing seamlessly when connection restores.

Thermal & A4 Invoice Printing

Instant hardware printing for 58mm and 80mm thermal receipt rolls with custom business logos, Sinhala/English item names, QR codes, and downloadable itemized A4 tax invoices.

Credit Ledger & Due Payment Automation

Track customer credit limits, outstanding balances, and 14-day payment windows. Automatically dispatch Brevo welcome letters, payment reminders, and settlement receipts.

Digital Warranty Tracking System

Every warranted product is tied to its invoice and serial number. Customers can verify active warranty protection 24/7 on our public tracker at nanosonic.lk/warranty.

Automated Inventory Deduction

Real-time stock deduction on every checkout, low-stock notifications, profit margin calculation against supplier costs, and fast barcode scanning lookup.

Role Permissions & Shift Cash Audit

Cashier PIN authentication, manager price discount overrides, shift opening/closing cash drawers, cash-in/cash-out records, and end-of-day sales reconciliation.

Plug & Play Hardware

Universal Hardware Compatibility

Nano POS runs on your existing PCs, touch terminals, laptops, or tablets without forcing you to buy proprietary locked hardware.

Thermal Printers

Xprinter, Epson, POSIFLEX 58mm/80mm

Barcode Scanners

1D & 2D QR, USB, Wireless Handheld

Cash Drawers

Automatic RJ11/12 kick trigger drawers

Display Terminals

Windows Touch, All-in-One POS, Dual CFD

Transparent Pricing

No Monthly Cloud Rental. Perpetual Lifetime License.

Save hundreds of thousands of rupees compared to subscription-based POS software.

Standard Single Store

Single Terminal License

Ideal for independent retail shops, salons, cafes, and grocery stores.

Rs. 45,000/ one-time payment

✓ Lifetime License • Zero Monthly Fees

Full Offline-First Billing & Inventory Engine

Thermal Receipt & A4 Invoice Printing

Barcode Scanner & Cash Drawer Integration

Credit Ledger CRM & Email Due Reminders

On-site Installation & Staff Training (Kandy / Islandwide)

Order Standard License

Enterprise Multi-Branch

Designed for busy supermarkets, multi-branch franchises, and restaurants with KDS.

Custom Quote/ based on branches

✓ Central Cloud Master Inventory & Telemetry

Everything in Single Terminal +

Multi-Cashier Counter Networking (Simultaneous billing)

Kitchen Display System (KDS) & Customer CFD Screen

Multi-Warehouse Inter-Branch Stock Transfers

Live Owner Executive Dashboard on Mobile / Web

Get Custom Enterprise Quote

Got Questions?

Frequently Asked Questions

Everything you need to know about setting up Nano POS in Sri Lanka.

Yes! Nano POS uses local browser and desktop database caching (Dexie.js / IndexedDB). Your cashiers can scan barcodes, ring up sales, calculate change, and print thermal receipts even during complete fiber or 4G outages. Once internet restores, all transactions automatically sync to MongoDB Atlas in the background.

Ready to Modernize Your Point of Sale System?

Join dozens of Sri Lankan retail merchants, supermarkets, and restaurants running on Nano POS. Get your customized hardware + software package today with free on-site training.

Test POS Live in Browser Book On-Site Demo in Kandy / Colombo

Smart, Offline-First POS Billing System in Sri Lanka