Custom Software Development

Retail store software

Shop software combines the checkout, inventory and online store with one stock level: items sold in-store and online are deducted from the same quantity, and the price is changed in one place. In Bulgaria, the checkout must be SUPTO, approved by the NRA, so we recommend a ready-made program for it, from 6,85 € per user per month; we build the online store and the integration: 840-6 300 €, while the full system costs 3 000-29 300 € (based on 98 of our quotes as of 14 August 2026).

Author:Ивелин КириловChief Technology Officer (CTO)
Managing editor:Владислав БарковManaging Director
Updated

What it includes

  • One stock level

    Shop, inventory and website with one stock level.

  • Two-way price sync

    Change the price in one place and it reaches the checkout and the website.

  • Barcode sales

    Products are scanned in-store.

  • Card payments

    A bank's POS terminal or myPOS, and online payments through Stripe.

  • Multiple locations

    Stock and turnover by store, with transfers between locations.

  • Reports

    Sales by product, shop and period, what is running out and what is sitting in stock.

How the process works

  1. 1A sale at the checkout or in the online store deducts from the same stock level.
  2. 2The new price or delivery is entered once and reaches everywhere.
  3. 3In the evening, the owner sees the turnover by shop and what needs to be ordered.

Solution

demo.mmm.software
3D printers and consumables

3D printers and consumables

Two-way pricing between the website and the system, online orders, inventory with shipment tracking, serial number-based servicing, and business-to-business sales.

Price

€3,000-€29,300

most often around €8,600

Based on 98 of our quotes as of 14 August 2026

In brief: the checkout is ready-made, the integration is our job

Saitami builds the store's system: one stock level for the till and website, an online store, multiple locations, business prices and reports for the owner. The on-site till remains a program approved by the NRA (Microinvest Sklad Pro 298 € excluding VAT, micro.bg from 6,85 € per month, Detelina POS 17,20 € per month, Plyus Minus Sklad from 12 €), connected to the system.

A custom system makes sense when the shop also has an online store, there are several locations, you sell to businesses with their own prices, or the cash register program cannot send stock data to the website.

What we have built so far

For Pelikan DTM, a distributor of office equipment with two locations and 2 564 products, we built inventory management, a checkout with a barcode scanner, deliveries and purchase invoices, plus their WooCommerce online store with 860 products, connected to an ERP. Akbari Perfume has five shops in Sofia and Plovdiv and its own online store, where the owner manages inventory. We show website-to-inventory synchronisation in the 3DPrintX demo.

What the law requires

The checkout is SUPTO under Ordinance N-18, listed with the NRA and registered for the location; in-store sales, including card payments, come with a receipt. An online store that accepts card payments submits its information to the NRA before launch. Prices on labels, at the checkout and on the website are in euro and match.

Timeline and price

An online store connected to inventory costs 840-6 300 €; a system for several locations with inventory, business prices and reports costs 3 000-29 300 €, based on our quotes. Support costs 100-350 € per month and is optional.

What we have not done so far

We have not registered our own cash register program with the NRA and have not connected a fiscal device in a live system. The checkout remains the ready-made SUPTO program, while we check its integration based on the program and model.

What you gain

One stock level

Shop and website.

Change the price once

And reaches everywhere.

The till stays compliant

A program approved by the NRA.

How we get started

  1. 01

    You describe the project

    A few sentences about what you need are enough.

  2. 02

    We come back with questions and a price

    We ask 2-3 specific questions and tell you the price range.

  3. 03

    We build a demo

    For a website, store or software system, we build a demo made for you.

  4. 04

    We send a proposal

    A written proposal with the exact price. We meet only to discuss the solution.

Frequently asked questions

Retail store software: €3,000-€29,300, typically around €8,600. The exact price is included in the written proposal.

It depends on the scope, which we set out in the proposal. For comparison, here are examples from our portfolio: Pelikan DTM: since April 2026, continuously developed, Elite Call Center: 6 months, LiftexPro: 8 months.

Yours. We hand over the source code and data to you.

If you wish, we can maintain the project for €100-€350 per month. We specify what maintenance includes in the quote.

Connections we have already built: online store, prices and orders in both directions, myPOS, Stripe and barcode scanners. We check other integrations and include them in the quote.

We have not connected a fiscal device before. If you need one, we check the model and include the integration in the quote.

For the checkout and inventory of one shop: a ready-made program approved by the NRA, such as Microinvest Sklad Pro for 298 € or micro.bg from 6,85 € per month. A custom system makes sense when you have an online store with one stock level or several locations.

Cash register programs cost from 5 € per month to 298 € as a one-off payment. An online store connected to inventory costs 840-6 300 € from us, while the full system costs 3 000-29 300 €.

Yes, this is the most common reason for choosing a custom system. This is how Pelikan DTM works.

What do you want us to build?

You describe the project, we come back with questions and a price range, then a demo and a written proposal.

Clients we have worked with

  • Akbari Perfume House
  • Ministry of Innovation and Growth
  • Crypto.bg
  • Pelikan DTM
  • FIX Bulgaria
  • Vakarel
  • MysteryBet
  • Omega Light
  • AGA Transfer
  • KMP Build
  • modernoBG
  • Vida Luxe
  • Avanta
  • Lichtgitter Bulgaria
  • Pintor
  • Baytown Machinery
  • Labimex
  • National Elevator Company
  • Christian Center Sofia
  • ZapaziChas
  • UnitGold
  • Unit.Estate
  • Elite Call Center
  • Camélia Désir
  • Videoto
  • Pro Structura