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Custom mobile application development services

Credit Agricole logoWelliba logoActivy logoSennheiser logo

Your trusted partner in full-cycle mobile development

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
5.0
Reviewed onClutch

Mobile development services that deliver business results

Custom mobile app solutions

If you're looking to build a new mobile app for your business, we’ll guide you through every step of the process. From product ideation and UI/UX design to mobile app development, quality assurance, and support plans with an SLA, we ensure that every aspect of your app is delivered to the highest standards.

Cross-platform app development

By choosing a cross-platform solution, you save time and reduce development costs, while expanding your reach to a broader audience with a single app solution. As experts in Flutter, the leading cross-platform technology, we build scalable, large-scale apps that deliver a seamless user experience across multiple mobile platforms.

Legacy app modernization

Does your app suffer from technical debt, causing poor performance and negative reviews? To address these challenges, we begin by conducting a detailed app audit to identify areas for improvement. This sets the stage for a strategic transformation into a modern, high-performing app that meets today’s user expectations and restores your competitive edge.

What is included in custom Mobile App Development?

Our clients often come to us with a business vision, and we've mastered the art of turning that vision into fully realized products. That’s why we offer end-to-end mobile app development services to take your project from concept to launch.
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
System Integrations

Why build your next mobile app with LeanCode?

1
Large-scale apps

With proven experience from large-scale projects (200+ people), we offer a service that is both tested and reliable, ensuring your app is built to the highest standards.

2
Short time to market

We don’t reinvent the wheel. Instead, we leverage proven components and solutions to accelerate development and bring your app to market faster.

3
On time and budget

Our managers continuously monitor projects to ensure they are delivered on time and within budget, providing a predictable and reliable project experience.

4
High responsibility

While many agencies simply provide mobile app developers, we take full ownership of projects, ensuring every detail is handled with care and precision.

75+
experts on board
60+
products delivered
9
years in the business
3
core technologies

Our proven mobile app development process

Credit Agricole Bank Polska logo
Industry
Banking
Headcount
5 000+

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 unique customer experience and user interface on the Polish market. They used Flutter technology to gain a competitive advantage.
200+
Members worked for a year on a project
30
Flutter Developers working to build the next-generation mobile banking app
12
months to deliver modern mobile app
Flutter
iOS
Android
5.0
Reviewed onClutch

Explore our delivered mobile solutions

Case Study MMG Talent by LeanCode
MMG Talent Logo
Mobile Application

MMG Talent

Case Study of Welliba App
Welliba logo
Mobile & Web Application

Welliba

Case Study Activy
Mobile Application

Activy

Client feedback that says it all

MMG Talent Logo

LeanCode has launched the app's MVP version, which received positive feedback for its user-friendly profile creation process. Their team manages the project well, proactively addressing issues and optimizing solutions. They also demonstrate excellent design, analytical, and communication skills.

Kasia Golda
Kasia GoldaCOOMMG Talent
5.0
Reviewed onClutch
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
5.0
Reviewed onClutch
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
5.0
Reviewed onClutch

We create mobile apps for diverse industries

Fintech

The fintech sector is evolving rapidly, posing a high demand for secure, future-proof solutions. At LeanCode, we have a proven track record of developing mobile and web apps for the financial industry, including for leading banks like Credit Agricole. We implement solutions such as KYC and KYB processes, seamless payment gateway integrations, subscription management, and credit card issuance. Most importantly, our solutions are always developed with cybersecurity in mind.

Learn more about mobile app development

How much does it cost to build a mobile app?

How long does it take to build an MVP?

How can you start with the Mobile App Development process?

What happens after an app is completed? What if there are some further issues?

How about no/low-code mobile solutions?

I have an existing web app and need a mobile app companion.

Meet our expert

Let’s turn your vision into a high-performance mobile app

Łukasz Kosman, CEO LeanCode
Hi,

During our first interview, we will discuss your vision for the mobile app, current resources, and how we can be helpful. You will also learn about the potential budget and timeline.

Łukasz KosmanCEO at LeanCode