Custom software, AI solutions and e-commerce development. We build the systems your business runs on.
For companies that want a partner, not a one-off project. We build the system, then keep maintaining and developing it with your business, so it never falls behind the way you work.
Business system · SaaS · IoT · Ongoing
A self-service laundry platform, from machine to app.
A laundromat chain that also sells its software to operators abroad. We build and maintain the platform behind it: the back office, the payment terminal app, the customer apps and the IoT software that controls the machines.
Platform and JSON API
- Washers, dryers, lockersIoT: started and stopped remotely
- Payment terminalCards, Apple Pay, Google Pay
- Customer appsSeveral brands, one codebase
- Back officeFranchisor, franchisees, operators
Built with: PHP · .NET · JSON API · Redis · MySQL · Swift · Kotlin
Read the case studyAlso
- Online store
Fishing-gear retailer moved from WooCommerce to Magento: Lithuanian, Latvian and international storefronts, synced with Rivilė.
- Shopify integration
BIOK LAB: orders, invoices and stock from the Shopify store flow into Euroskaita accounting, no manual entry.
- Website
Sports federation site that pulls competition results straight from the results system.
What we build
Integrations we have built: Lithuanian accounting systems Rivilė and Euroskaita, Paysera payments, Omniva and Venipak couriers, Apple Pay and Google Pay.
Custom software and SaaS
Back offices, portals, SaaS platforms and IoT solutions that run machines and payment terminals.
PHP, .NET, Node.js, Go, Rust
AI, automation and integrations
AI agents take on the repetitive work, and your CRM, store and accounting talk to each other.
AI agents, language models, APIs, CRM, accounting
Online stores
Stores wired to your stock, accounting, payments and couriers, so nobody retypes an order.
Magento, Shopify, PrestaShop, Sylius, custom
Shopify stores
Shopify store development, custom themes and features, and integrations with accounting and other systems.
Shopify, Liquid, Shopify API, Euroskaita
Mobile apps
iOS and Android apps, native or cross-platform, from first version to store release and updates.
Swift, Kotlin, Flutter, React Native
Company websites
Fast sites on WordPress or a custom CMS that your team can edit without calling us.
WordPress, custom CMS, multilingual
A long-term partner, not a one-off job.
Just IT is a software studio in Lithuania. Since 2020 we have built custom systems, AI solutions, online stores, mobile apps and websites, and connected them to the accounting, payments and couriers our clients already use.
We don’t hand over a project and disappear. Most of our work is long-term: once a system is live, we maintain it and keep developing it as the business changes. Developers, designers and testers from a network we trust join when a project needs them.
We work in English and Lithuanian with companies in Lithuania and abroad. As an EU company we work under GDPR, and Lithuanian time is one hour ahead of Berlin and two ahead of London.
PassLT
An app that prepares workers from outside the EU for the Lithuanian state-language exam, with seats their employers can buy. Built in Flutter for Android and iOS, with a Laravel back office.
Our own product · in development · real screens from the current build



You see the estimate before we write a line.
You approve a plan with hours and a price for every part, then watch it get built.
- A call
- What you need, what you already use, and what must not break.
- Itemised estimate
- Design, development, testing and management, each with hours and a price. Nothing starts until you approve it.
- Milestones
- You see working software at every milestone, not only at the end.
- Long-term support and development
- We don’t disappear after launch: every project has a warranty period, then we maintain and develop the system, estimating each change first.