Flutter CTO Report 2024
Get insights about Flutter directly from CTOs, CIOs, Tech Leads, and Engineering Managers!

We consult, design and develop products for scale-ups and enterprises

Millennium logo
Credit Agricole logo
Shell logo
Sennheiser logo
Activy logo
Xelion logo

Areas of expertise







Why LeanCode


Best Experts with a strong academic background

Poland is the hub of some of the best programmers in the world; our team includes only the most exceptional ones.


Real problem Solvers, not a body leasing company

We really care about the problem you want to solve. We will challenge your thinking and would like to be challenged as well.


Enterprise level Consultants

We have experience in managing the core IT systems for large, multinational corporations with a tremendous impact on the business.

Examples of our work

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

Explore our know-how

Flutter CTO Report 2024

Flutter CTO Report 2024

This report offers a comprehensive summary of insights and opinions on Flutter from CTOs, CIOs and Tech Leads, based on their experience with various Flutter projects.
Ebook Enterprise

Flutter for Enterprise

Based on the experience from large-scale projects with more than 20 Flutter Devs, we summarized best practices for building enterprise applications in Flutter.
Ebook Banking

Building Mobile Banking Apps with Flutter

This ebook is packed with technical and organizational details about delivering the "CA24 Mobile" banking application with Flutter.
Meet our expert

Let’s talk about your big vision!

Łukasz Kosman, CEO LeanCode

Hi, my name is Łukasz, and I will guide you through the product development process. During our first interview, we will discuss your needs and estimate the budget and timeline for the project.

Łukasz KosmanCEO at LeanCode