Custom Software · Point of Sale

Custom POS software development for fast, reliable checkouts

A point of sale has one job during a rush: keep the queue moving. We build or configure POS systems that stay fast, work offline and keep stock accurate behind the counter.

Definition

What is POS Systems?

Custom POS software development is the building or tailoring of point-of-sale software for a retailer's checkout: scanning items, applying prices and promotions, taking payments, printing receipts and recording each sale against stock. A retail POS must work with the shop's barcode scanners, receipt printers, cash drawers and scales, and keep selling when the internet drops. It can be built from scratch or based on Odoo Point of Sale with custom extensions.

Many retailers outgrow their first POS within a few years. It slows down as the product list grows, it cannot run promotions the way marketing wants, each branch keeps its own stock, and reports must be exported to a spreadsheet before anyone can read them. Replacing it is risky because the counter cannot stop. A good POS system development project plans hardware, data and cut-over as carefully as the software.

Business challenges

Why retailers outgrow their POS

01

Slow at peak times

Searching a large catalog or waiting on a cloud server makes the queue longer exactly when it matters.

02

Branches out of sync

Prices, promotions and stock are updated separately at each branch, causing pricing errors and stock confusion.

03

Internet dependence

When the connection drops, the counter stops or staff fall back to handwritten bills.

04

Weak promotion and loyalty options

Buy-one-get-one, bundle pricing, member discounts and points cannot be set up without workarounds.

What Digihub provides

Our POS Systems service

01

Counter workflow design

Checkout screens organized around your best-selling items, scanning habits and payment mix, tested with cashiers.

02

Hardware integration

Barcode scanners, receipt and label printers, cash drawers, customer displays, weighing scales and card terminals.

03

Offline-first operation

Terminals keep selling during outages, store transactions locally and synchronize when the connection returns.

04

Pricing, promotions and loyalty

Price lists by branch or customer group, time-limited promotions, bundles, coupons, gift cards and loyalty points.

05

Central product and stock

One product catalog and price list for all branches, with real-time or periodic stock sync to inventory.

06

Cash control and reporting

Opening and closing sessions, cash counts, returns and void approval, plus sales by item, cashier, hour and branch.

Included capabilities

  • Fast barcode and keyboard search
  • Offline selling with sync
  • Split and mixed payments
  • Returns and exchanges
  • Weighing scale barcodes
  • Promotions and coupons
  • Loyalty points and gift cards
  • Cashier sessions and cash counts
  • Branch-wise sales dashboards
Business benefits

What POS Systems changes for your business

01

Shorter queues

Fast search and scanning keep checkout moving at peak hours.

02

Selling continues offline

Offline mode is designed to keep counters running through outages.

03

Consistent pricing

Central price lists and promotions apply the same way at every branch.

04

Daily cash certainty

Session closing shows expected versus counted cash for every cashier.

Use cases

Where it makes the biggest difference

Supermarkets and grocery stores

Large catalogs, weighed items, fast scanning and promotions on many products at once.

Pharmacies

Batch and expiry-aware sales, prescription notes and stock that must never go negative.

Apparel and footwear

Size and color variants, exchanges and seasonal markdowns across branches.

Electronics and mobile shops

Serial and IMEI tracking at sale, warranties and installment payments.

Process

From counter audit to a night-time cut-over

We plan the switch around trading hours so the counter can keep serving.

  1. Audit the counter

    Observe checkout during busy hours and list hardware, payment methods and pain points.

  2. Choose the platform

    Compare Odoo POS, extending your current system and a custom build against your requirements.

  3. Prepare data

    Clean product master, barcodes, price lists, customers and opening stock.

  4. Build and configure

    Set up or develop checkout, promotions, sessions and reporting, then connect hardware.

  5. Test at a pilot counter

    Run one counter in parallel or during quieter hours before the full switch.

  6. Cut over

    Switch branches outside trading hours with final stock and price loads.

  7. Support the first days

    Stay available for cashier questions and hardware issues during the first trading days.

Technology & integrations

What it connects to

POS Systems
  • Barcode scanners and receipt printers
  • Card payment terminals
  • Weighing scales
  • Tax authority invoice reporting, such as FBR POS integration in Pakistan
  • E-commerce stores
  • Inventory and accounting systems
  • SMS for receipts and loyalty
Diagram: POS Systems at the centre, connected to 7 common integrations including barcode scanners and receipt printers, card payment terminals, weighing scales.

Built with

Compare

Odoo POS or a custom POS?

Comparing Odoo Point of Sale with a custom-built POS system
CriterionOdoo Point of SaleCustom POS
Offline sellingSupported within open sessionsDesigned to your requirements
Inventory and accountingNative Odoo integrationMust be integrated
Unusual checkout flowsCustom module neededBuilt in
Hardware supportCommon devices supported; some need an IoT box or driversBuilt per device
Best fitRetailers using or adopting OdooSpecialized counters or existing back-office systems
Security & scalability

Security, quality and scale

Cashier permissions

Discounts, voids, returns and price changes require the right role or a manager PIN.

Payment data handling

Card details are handled by the payment terminal or gateway and the POS stores only references, which keeps your PCI DSS scope smaller.

Audit logs

Every voided item, deleted line and drawer opening is logged.

Local and central backups

Offline transactions are retained on the terminal until confirmed by the server.

Why Digihub

What working with us looks like

Odoo POS expertise

We configure Odoo Point of Sale where it fits and extend it carefully where it does not.

Hardware handled

We test your scanners, printers, scales and terminals as part of the project, not as an afterthought.

Cut-over without closing

We plan the switch around trading hours so the shop keeps serving customers.

Connected to stock

We also build inventory and distribution systems, so the POS is not an island.

Pricing

What it costs

Fixed-price packages with the scope written down, paid stage by stage. Your project goes live once it's fully paid.

From $1,200£920AED 4,400Rs 150,000 per project

Fixed-price custom software packages from discovery to SaaS MVP, plus dedicated developers by the month.

See packages and prices
Keep exploring
Sources

Sources and further reading

Official documentation and guidance if you want to read more about this topic.

FAQ

POS Systems: questions we hear most

Will the POS keep working if the internet goes down?

Yes, if it is designed or configured for offline use. Sales are stored on the terminal and synchronized when the connection returns; we test this behavior with your hardware before go-live.

Can we use our existing POS hardware?

Usually much of it can be reused. Standard barcode scanners, receipt printers and cash drawers are widely compatible, while scales and card terminals need checking model by model.

Should we choose Odoo POS or a custom POS?

Odoo POS is a strong choice if you want stock, purchasing and accounting in the same system. A custom POS is better for unusual checkout processes or when the POS must plug into back-office software you plan to keep.

Can the POS report invoices to the tax authority?

Integration with tax authority invoicing systems can be built where your business is required to report sales, subject to the authority's published technical specifications. In Pakistan, for example, FBR requires certain retailers, such as Tier-1 retailers, to connect their POS for real-time invoice reporting. You should confirm with your tax advisor whether the requirement applies to you.

How is a POS different from a restaurant management system?

A POS focuses on checkout, payments and stock at the counter. A restaurant management system adds kitchen displays, tables, recipes and ingredient costing on top of the POS.

Next step

Tell us about your counters

Share how many branches and terminals you run and the hardware you use. We'll suggest whether to configure, extend or build.