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app development

User-friendly banking with custom mobile apps by LeanCode

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 - Credit Agricole Bank Polska
Tomasz Czerwiński
Deputy CIO at Credit Agricole Bank Polska
Forum Technologii Bankowych logo
Millennium Bank logo
Credit Agricole Bank Polska loga

Example of delivered financial apps

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

Credit Agricole Bank Polska

Case Study of Kontomierz app
Kontomierz logo
Web Application


Our Banking success story

Core technologies

Other technologies

Node.js logo
TypeScript icon
Kubernetes icon
AWS icon
Google Cloud icon
Google Cloud
Microsoft Azure icon
Microsoft Azure

Examples of features we implemented

Opening Bank Account

Biometric Authentication


Online Cash Loan Request

Support Portal

With the Know Your Customer (KYC) process banking mobile app enables customers to open regular, forex, and savings accounts in a quick and secure way. Customers can confirm their identity via mobile phone. KYC is an obligatory process meant to prevent banks from being used by criminal elements for money laundering activities.

Useful resources

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.
Ebook Mobile Apps

Mobile Banking in Poland in 2022

This report presents conclusions regarding the state of mobile banking applications in Poland, customer needs, and technological challenges.

How to increase a banking app's success rate?

Banking is dominated by mobile platforms, which is why they should be developed by banks not only in terms of functionality but also in new roles so that they become the first and most common way of interacting with the client and an easily accessible and personalized tool.

It should be noted that the bank's mobile application should not only duplicate or extend the functionality of traditional online banking but should function as a fully functional digital bank so that the user does not have to use other channels to perform everyday transactions. This means providing access to most banking services as well as having features that attract new customers.

Mobile banking applications are the most popular digital communication channel, so they should be as customer-centric as possible and, at the same time, inspire trust.

This means that the mobile application should not only be functional, useful and safe, but also its offer and interface should be adapted to the needs and requirements of users or their current situation.

An important factor in the success of mobile applications of financial institutions is their effective integration at the architectural level with other channels and tools of the bank to enable a smooth transition between them and data flow. The ability to track the user's customer journey is also important from the bank's employees' point of view.

Implementing all the described characteristics of mobile applications is possible using proven technologies or those developing as part of technological trends.

Mobile banking applications are the most popular digital communication channel, so they should be as customer-centric as possible and, at the same time, inspire trust.
Meet our expert

Let's talk about your mobile banking application

Łukasz Kosman CTA Biznes

This is the initial scoping call. Its purpose is to get a better understanding of what you want to build. After this call, you will have an idea about your project's feasibility and the ballpark estimates.

Łukasz KosmanCEO at LeanCode