Custom software development for your unique business needs

Kontomierz logo
Welliba logo
Maspex logo
Credit Agricole logo
We are your tech partner

Turn an idea into a product

If you have identified a valid business problem and have an idea of how to solve it with a solution 10x better than the existing alternatives, chances are that you might want to build a custom mobile application or web portal or take it all. 

Do you really need a custom software?

Market validation and UX workshops

Before spending your budget on custom software development, which is not that cheap, you should be confident that your market validation is properly confirmed. For that, you may need to build a small Proof-of-Concept app, run the Design Thinking Workshops, and build a clickable Prototype. All those activities are far cheaper than building a full-scale product and can help you solidify your business case against future business partners and investors.

IT Consulting

If you want to check the feasibility of a particular technology, need additional expertise by adding new apps to your environment (for example, adding a mobile app to your platform), or simply run a tech audit to understand your current infrastructure and setup better, we are happy to help with our consulting sessions and product workshops. 

New mobile app development

If you know exactly what is your business vision and are ready to transfer that into a new mobile application that will captivate your audience daily, you are happy to help. In that case, we can take care of everything that is necessary, including UX/UI, Mobile app development, Quality assurance, and Support plans with SLA.

Web portal

If your goal is to reach a broad audience with the lowest acquisition costs and multiscreen experience, your choice will likely be a web portal. We can help you structure that vision with our UX/UI Design Thinking Workshops, lead you through the bulletproof development process with high-quality assurance standards, and protect your peace of mind late at night by providing support services with SLA.

What is included in Custom Software Development?

This service is tailored exactly to your needs and can contain any of the following services, bundled or taken individually. Our clients often approach us with their business vision, which we have learned to transfer into the working product. This is why we provide the full range of optional services to build the mobile app from 0 to 1. 
Design Thinking Workshops
UX/UI Design
Low/Hi-Fidelity Mockups
Clickable prototype
Research and User Interviews
Agile Coaching
Backlog Management
Mobile App Development
Quality Assurance 
Automated tests 
Release management
Support and SLA

What sets us apart from other agencies?



While many agencies primarily provide you with developers, we go a step further by taking full ownership of your projects.


Short time to market

We don’t reinvent the wheel from scratch but leverage proven components and solutions that save development time.


Experience from 60+ apps

You get the assurance of working with a highly skilled team that builds top-tier mobile apps, resulting in 5-star client reviews.


Automated tests

Forget regression bugs. Our robots make sure that everything is okay, so that you don’t need to. This means higher overall app quality.


Agile culture

We embrace Agile with Scrum as our default, but we also do Scrumban and Kanban. You gain the advantage of an adaptive approach to project management.


On time and budget

Our managers constantly monitor the projects to ensure they are delivered on agreed-upon time and budget, providing a predictable project experience.


We are on the tech edge

We closely monitor the new technologies and solutions to build state-of-the-art applications and software.


Your tech partner

We are taking responsibility for the tech side of the project and recommend solutions that fit your business needs.



Transparency in the way of project management and access to our project tracking tools. It promotes collaboration and contributes to the overall success.

Examples of custom apps

Case Study of Welliba App
Welliba logo
Mobile & Web Application


Case Study of Credit Agricole Bank Polska App
Credit Agricole Bank Polska logo
Mobile Application

Credit Agricole Bank Polska

Case Study Activy
Mobile Application


Reviews of our work

Welliba logo

Solid knowledge and trusting cooperation help us deliver new features to our customers quickly, continuously, and based on high-security standards. The sophisticated code base and experience within LeanCode provided us with a strong foundation for the IT security certification process. We are thrilled and grateful to have found LeanCode as a partner and look forward to our further cooperation.

Mario Martella
Mario MartellaManaging Director & CTOWelliba
Credit Agricole logo

LeanCode has delivered the MVP within 2.5 months, exceeding our expectations. Agile and detail-oriented, they've taken the time to understand the banking industry to deliver the most effective solution for our users. They are professional, efficient, and responsive.

Tomasz Czerwiński
Tomasz CzerwińskiDeputy CIOCredit Agricole Bank Polska
Activy logo

If you decide to work with LeanCode, you will experience a lot more than a usual relationship between a client and a vendor. They have empathy combined with responsibility, and they are really lean - both for small and big clients.

Igor Pielas the CEO at Activy
Igor PielasCEOActivy

How can you start with custom software development?

Meet our expert

Let’s talk about your new digital product!

Łukasz Kosman, CEO LeanCode

During our first interview, we will discuss your vision and how we can be helpful in delivering it. You will also learn about the potential budget and timeline depending on how specific this vision is.

Łukasz KosmanCEO at LeanCode


How should I prepare the brief for the budget estimations?

I still hesitate between the app and the web portal.

What technologies are you using for custom software development? 

How quickly can we start with development? 

What happens when the project is finished?