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Banking app development

Home
Industry
Banking

User-friendly
Banking with custom
mobile apps
by LeanCode

Let's work together
Credit Agricole logo

LeanCode is open to learning a new domain of banking business and open to deliver the effective solution for specific cases. They were very committed to keep the project in Flutter clean and pure to limit bad technical decisions.

Tomasz Czerwinski
Tomasz CzerwinskiDeputy CIOCredit Agricole Bank Polska
5.0
Reviewed onClutch
Forum Technologii Bankowych logo
Millennium Bank logo
Credit Agricole Bank Polska loga
Virgin Money logo

Our Banking success story

Modern Banking app development challenges

Mobile is undisputably the major channel for users' interactions with mobile banking apps, and according to recent reports from the banking industry, more than 76% of users are mobile-only. Banks have to continuously invest in security, UX, performance, and innovation to meet customer expectations and stay competitive in the mobile landscape. LeanCode, as a trusted technology partner, can help banks achieve better results by supporting them in implementing the best solutions in mobile applications.
High development and maintenance costs of a banking app

High costs of development and maintenance

High costs of development and maintenance

Modern mobile banking apps need to cover all relevant from the users’ perspective features, starting with customer onboarding with KYC, KYB, biometrics, quick transfers, bank account statements, credit card issuing and provisioning, financial health checks, and many more. If the bank relies on the old native-only approach, the total costs of building and maintaining mobile banking apps are growing exponentially. At LeanCode, we develop native apps using cross-platform technologies such as Flutter, which, according to 56% of respondents from the Flutter CTO Report, helps to develop mobile applications more than 50% quicker.
Separate iOS, Android, and web development teams for a banking app

Separate teams for iOS, Android, and Web

Separate teams for iOS, Android, and Web

The banking development teams, which need to keep the coherence between all channels in the omnichannel strategy, need to develop the same features separately for iOS, Android, and Web applications using separate teams, separate design systems, and separate test scenarios to avoid regression bugs. This is not only hard to manage but also extremely expensive and inefficient. This is why advanced mobile banking development teams like Credit Agricole or Millennium Bank use cross-platform technologies such as Flutter, which enable them to build the feature once and deploy it to iOS, Android, and the Web.
A mobile developer improving mobile banking app performance

Inconsistent mobile banking app performance

Inconsistent mobile banking app performance

It is fundamental for banks to measure how effectively and reliably their mobile app operates to ensure the best user experience. However, some apps may be slow, crash, or fail to load properly, which frustrates users, stopping them from using the application's features when needed. LeanCode’s mobile banking application development embraces Flutter technology, which ensures seamless performance for Android and iOS users.
Excellent UX/UI in a mobile banking app

Inconsistent UX and UI between mobile operating systems

Inconsistent UX and UI between mobile operating systems

Banking apps must be available on multiple platforms (iOS and Android) to reach a wide audience and deliver the same high user experience to each group of users. However, due to being forced to manage changes in UI and updates separately, delivering the same standards is often challenging. LeanCode helps build banking apps with all the advantages of cross-platform technologies, which solves these issues.
Migration of a banking app from one technology to another

Migrating a banking app from one technology to another

Migrating a banking app from one technology to another

It happens that the technology on which a mobile banking application is based stops supporting its fast development due to its limitations. When banks cannot implement the features their customers expect, their position in the market can be weakened. Here, LeanCode comes to the rescue, with experience in mobile banking application development and app migration to Flutter using the established add-to-app for Flutter migration framework. Based on our previous banking projects, we know how to do it quickly and safely.
A mobile developer implementing new features in a banking app

The need for fast implementation of new features

The need for fast implementation of new features

The lack of features expected by users can lead to an increase in bad ratings of banking mobile applications in the app marketplaces, and this can result in abandoning the online banking services of a given bank by these customers. At LeanCode, we understand how important it is to add new features efficiently, and thanks to the experience of our mobile and backend development teams, we support banks in implementing innovations. Our client, Credit Agricole, during the three years of cooperation, advanced in customer reviews and popularity rankings run by Newsweek gradually to 10th, 7th, and in 2024 to 3rd location in Poland thanks to the fast implementation of new features and high app performance.
A mobile developer integrating the bank's other channels and tools

Integration with the Bank's other channels and tools

Integration with the Bank's other channels and tools

An important factor in the success of mobile banking applications is their effective integration at the architectural level with other channels, contact centers, or even kiosk-type devices in branches 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. LeanCode is a tech partner that can support banks in addressing these challenges.
A mobile app development expert at work

Lack of tech experts to consult and implement changes

Lack of tech experts to consult and implement changes

Banks are shifting their employment structures, reducing staff while increasing demand for IT skills. The rise of digital channels forces financial institutions to invest heavily in tools and provide adequate security and technical support. LeanCode offers IT Consulting to guide tech decisions and Staff Augmentation services, where our team strengthens internal banking teams and ensures the right skills are in place for digital success. We also offer training services based on our long-lasting training programs with university backgrounds, where we provide the training for the development teams to advance in modern development frameworks, such as Flutter or .NET.

Examples of mobile banking features we implemented

Opening an account via a mobile app

We implement this feature, enabling banks to offer a seamless, secure, and convenient onboarding process. This feature reduces friction, attracting more customers while lowering operational costs. By integrating automated KYC and KYB checks and biometric authentication, we ensure fast, compliant, and secure account openings—essential in today’s digital-first banking landscape.

Credit Agricole Bank Polska logo
Industry
Banking
Headcount
5 000+
Services
Mobile App DevelopmentFlutter Staff Augmentation

Building one of the biggest Flutter applications in the world

Credit Agricole Bank Polska decided to become one of the leaders in digital banking. Their new application, CA24 Mobile, offers a customer experience and user interface which are unique on the Polish market. They used Flutter technology to gain a competitive advantage.

Building one of the biggest Flutter applications in the world

Credit Agricole Bank Polska decided to become one of the leaders in digital banking. Their new application, CA24 Mobile, offers a customer experience and user interface which are unique on the Polish market. They used Flutter technology to gain a competitive advantage.
200+
Members worked for a year on the project
200+
Members worked for a year on the project
30
Flutter Developers working to build a next-generation mobile banking app
30
Flutter Developers working to build a next-generation mobile banking app
12
months to deliver a modern mobile app
12
months to deliver a modern mobile app
Flutter
iOS
Android
5.0
Reviewed onClutch
See the case study

Reviews of our work

Infinit logo

LeanCode’s project management has been exemplary throughout our collaboration. They consistently delivered items on time and demonstrated strong ownership of commitments, which gave us confidence in hitting critical milestones. What stood out was their ability to quickly adapt to shifting priorities and evolving requirements, always aligning their work with our business objectives.

Guillaume Lavignotte
Guillaume LavignotteEngineering ManagerINFINIT
5.0
Reviewed onClutch
Infinit logo

LeanCode’s project management has been exemplary throughout our collaboration. They consistently delivered items on time and demonstrated strong ownership of commitments, which gave us confidence in hitting critical milestones. What stood out was their ability to quickly adapt to shifting priorities and evolving requirements, always aligning their work with our business objectives.

Guillaume Lavignotte
Guillaume LavignotteEngineering ManagerINFINIT
5.0
Reviewed onClutch
Kontomierz logo

Working with LeanCode is at a very high level! Interviews and meetings go smoothly, the team is committed to the work and the project. The project is very well managed.

Marzena Wójcik
Marzena WójcikProduct OwnerKontomierz.pl
5.0
Reviewed onClutch
Kontomierz logo

Working with LeanCode is at a very high level! Interviews and meetings go smoothly, the team is committed to the work and the project. The project is very well managed.

Marzena Wójcik
Marzena WójcikProduct OwnerKontomierz.pl
5.0
Reviewed onClutch

Our mobile banking app development services

Mobile App Development

Mobile App Development

Staff Augmentation 2.0

Staff Augmentation 2.0

Automated UI Testing in Flutter

Automated UI Testing in Flutter

IT Consulting

IT Consulting

Custom Software Development

Custom Software Development

Mobile App Development

Mobile App Development

Staff Augmentation 2.0

Staff Augmentation 2.0

Automated UI Testing in Flutter

Automated UI Testing in Flutter

IT Consulting

IT Consulting

Custom Software Development

Custom Software Development

Custom banking app solutions by LeanCode

Contents
Banking Mobile App Development

At LeanCode, we understand banks' challenges in today's digital landscape. Our Mobile Banking Application Development service is designed to tackle these issues head-on. We don't just build apps; we create tailored solutions that enhance customer engagement and streamline transactions. With our deep expertise and commitment, we help you transform your mobile banking services into seamless experiences. Partner with us, and together, we’ll drive innovation and growth in your financial offerings.

Core technologies

Flutter icon
Flutter
.NET logo
.NET
React icon
React

Other technologies

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

Why choose our banking software development company?

1
High-responsibility

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

2
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.

3
Short time to market

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

4
Your tech partner

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

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See our mobile banking solutions

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

Kontomierz

Case Study of Invoice Gateway App
Invoice Gateway logo
Web Application

Invoice Gateway

Learn more about mobile banking software development

Meet our expert

Let's talk about your mobile banking application

Łukasz Kosman / CEO at LeanCode
Łukasz Kosman, CEO at LeanCode
lukasz@leancode.pl
Łukasz Kosman CTA Biznes
Hi,

This is the initial scoping call with one of our experts. 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