LeanCode is a full-cycle software development company designated as an official Flutter consultant by Google. With a team of 80+ tech experts, we build software solutions that drive change and help businesses scale.
As your tech partner, we cover the entire software development lifecycle – from product strategy and design to development, launch, and maintenance. Our offering includes:
Flutter Development Services: Our 40+ Flutter engineers and 2 Google Developer Experts (GDEs) build secure apps for mobile, web, and desktop.
Product Strategy & IT Consulting: Through Design Thinking Workshops and Mobile App Audits, we validate ideas, define roadmaps, and ensure every app meets user needs and business goals.
Mobile App Development: We use our custom Mobile App Template with reusable components to accelerate development, reduce costs, and shorten time-to-market.
Product Growth: We go beyond launch, offering ongoing support, maintenance, and feature development. We fix issues fast, ensure smooth operation, and train your internal teams to keep the product growing.
Why choose LeanCode:
Recognized Flutter experts: We're official Flutter consultants appointed by Google – trusted for our technical excellence and community leadership. Enterprise know-how: From banking and finance to healthcare, real estate, education, and retail, we deliver solutions that meet strict security and compliance standards.
Trusted by top brands: We've partnered with enterprises such as Millennium Bank, Credit Agricole Bank Polska, Virgin Money, Tide, Maspex, Sonova, Shell, Viessmann, NOS, and E. Wedel.
Responsible owners: We deliver by taking ownership of every project and responsibility for the outcome.
Leaders in the Flutter community: We're one of the most active voices in the Flutter community – organizing events, creating solutions like Patrol, contributing to open source, and sharing knowledge at conferences across Europe and beyond.
Mobile App DevelopmentCustom Software DevelopmentHybrid & cross platform appsFlutter
Pricing Snapshot
Min. project size
$25,000+
Avg. hourly rate
$50 - $99
/hr
Rating for cost
4.9
/5
What Clients Have Said
LeanCode offers competitive pricing and good value for cost, as highlighted in multiple reviews. Clients appreciate their budget fit and expertise, especially in Flutter development. Specific project costs are not detailed, but clients note timely deliveries and effective communication, indicating overall satisfaction with their investment.
LeanCode is praised for their innovative approach to problem-solving, offering creative solutions to complex challenges. Their ability to anticipate and address potential issues is a valued aspect of their service.
Challenges with English Proficiency
One client noted a minor challenge with English language proficiency, suggesting there may be room for improvement in this area to enhance communication further.
High Client Satisfaction
LeanCode's clients express high satisfaction with the delivered products, noting improvements in functionality and user experience. The company's ability to meet client needs and exceed expectations is consistently recognized across various projects.
Strong Project Management
Clients frequently highlight LeanCode's effective project management, noting their ability to deliver projects on time and within budget. Their use of agile methodologies, such as Scrum, and clear communication channels contribute to a smooth workflow and successful project outcomes.
Collaborative and Engaged Team
LeanCode's team is described as collaborative, proactive, and highly engaged. Clients appreciate their commitment to understanding business needs and providing solutions that align with strategic objectives, fostering a strong partnership.
Responsive and Flexible
LeanCode is described as responsive and flexible, quickly adapting to changing project requirements and client needs. Their ability to adjust team configurations and resources as needed is appreciated.
LeanCode provides mobile app development and consulting for a consumer devices company. The team has helped the client build strategic know-how in Flutter and has co-developed a new app with the internal team.
LeanCode has delivered quality work on time, resulting in positive app ratings and reviews. The team is flexible, accommodating, and responsive to requests. LeanCode's openness and expertise are key elements of their work. Overall, LeanCode has been the perfect partner for the client's needs.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Senior Project Manager of Sonova Consumer Hearing GmbH
Describe what your company does in a single sentence.
At Sonova Consumer Hearing, we develop and offer consumer devices such as headphones, soundbars and speech-enhanced hearables under the brand license of Sennheiser.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire LeanCode to accomplish?
Consulting and development support
SOLUTION
How did you find LeanCode?
Referral
Other
Why did you select LeanCode over others?
Close to my geographic location
Pricing fit our budget
Good value for cost
Referred to me
Company values aligned
How many teammates from LeanCode were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
LeanCode helped us building up strategic know-how in Flutter and co-developed our new companion App in collaboration with our internal development team and key stakeholders.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
In time and quality delivery; positive App ratings and reviews
Describe their project management. Did they deliver items on time? How did they respond to your needs?
LeanCode always delivered on time and quality. The reaction to any kind of request was always on short notice and team configuration could be adjusted flexible according to our needs.
What was your primary form of communication with LeanCode?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
The flexibility, openness and expertise of every single team-member makes LeanCode a perfect partner for our needs.
Are there any areas for improvement or something LeanCode could have done differently?
Nothing to complain about.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Mobile App Development for University
Custom Software DevelopmentMobile App Development
Google app engine
$50,000 to $199,999
Oct. 2024 - Apr. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They have open communication channels to all levels."
Apr 1, 2025
Professor, University
KTT
Verified
Education
London, England
1,001-5,000 Employees
Online Review
Verified
LeanCode developed a mobile app for a university. The team used Flutter and provided full-cycle development, from designing the app to delivering the final product.
LeanCode delivered the app on time and within budget. The team also ensured the app was stable and well-designed. LeanCode was highly responsive and communicated openly through virtual meetings, emails, and messages. The client was impressed with the team's accessibility.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am a professor at a university.
Describe what your company does in a single sentence.
University
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire LeanCode to accomplish?
Deliver a Mobile App in Flutter
Project Management
Design
SOLUTION
How did you find LeanCode?
Online Search
Why did you select LeanCode over others?
High ratings
Close to my geographic location
Pricing fit our budget
Company values aligned
How many teammates from LeanCode were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
full cycle---cooperate on design to given specs to Q&A
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
completion on time, budget and stable well-designed software app
Describe their project management. Did they deliver items on time? How did they respond to your needs?
yes, yes
What was your primary form of communication with LeanCode?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
They have open communication channels to all levels
Are there any areas for improvement or something LeanCode could have done differently?
no
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Mobile App Dev for Construction Company
Custom Software DevelopmentMicroservices Architecture ServicesMobile App Development
Other app platform
Confidential
Sep. 2024 - Jan. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Resources were properly allocated and team management allowed for sufficient task distribution."
Mar 4, 2025
Business Analyst, Construction Company
Anonymous
Verified
Other industries
Wroclaw, Poland
201-500 Employees
Online Review
Verified
LeanCode developed an e-book application for a construction company. The team handled user requirements gathering, wireframing and prototyping, UI/UX design, user authentication, and account management.
LeanCode successfully delivered the e-book application on time. The team efficiently allocated resources and managed tasks to ensure timely delivery. They communicated directly via virtual meetings and email, resulting in a smooth workflow.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Business Analyst of a construction company
Describe what your company does in a single sentence.
We are active in the development/construction business.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire LeanCode to accomplish?
Build the application for the end customer.
SOLUTION
How did you find LeanCode?
Online Search
Other
Why did you select LeanCode over others?
Referred to me
Company values aligned
How many teammates from LeanCode were assigned to this project?
6-10 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
User requirements gathering
Creation of wireframes and prototypes
UI/UX design for user friendly interface
User authentication and account management
Analytics and user behavior tracing
Functional testing of all features
User acceptance testing
Initial launch and monitoring
Backend infrastructure for content management and user data
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Finished e-bok application.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Product was delivered on time. Resources were properly allocated and team management allowed for sufficient task distribution.
What was your primary form of communication with LeanCode?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
Direct communication.
Are there any areas for improvement or something LeanCode could have done differently?
Nope.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
UX/UI Design & App Development for Confectionery Brand
"They proactively addressed challenges early on, which was crucial for maintaining momentum."
Dec 2, 2024
Content Manager, The Chocolate Factory E.Wedel
Anna Grochowiak
Arts, entertainment & music
Warsaw, Poland
1,001-5,000 Employees
Online Review
LeanCode developed a desktop app for a confectionery brand that allows users to design custom packaging. The team created wireframes, developed the app, and tested the product.
LeanCode delivered a polished and user-friendly app that met the client's expectations. The team presented regular demos to ensure alignment with the client's vision. Moreover, they maintained a structured timeline and addressed challenges quickly.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Content Manager of The Chocolate Factory E.Wedel
Describe what your company does in a single sentence.
Lotte Wedel is a confectionery brand with over 170 years of history and deep roots in Warsaw’s cultural and culinary traditions. Established in 1851 by Karol Wedel, the company has become synonymous with premium-quality chocolates and sweets, cherished by generations of Poles. Wedel’s iconic products, including its famous Ptasie Mleczko®, have become household names and symbolize craftsmanship, taste, and innovation in the confectionery industry.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire LeanCode to accomplish?
Proposing a concept for an application aligned with the exhibition experience.
Development of a desktop application for designing personalized Ptasie Mleczko® Packaging.
Creating intuitive and visually appealing features for different generations.
SOLUTION
How did you find LeanCode?
Online Search
Why did you select LeanCode over others?
High ratings
Pricing fit our budget
Good value for cost
How many teammates from LeanCode were assigned to this project?
6-10 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
LeanCode successfully implemented an application that became one of the main attractions at the Chocolate Museum. The company was involved from the beginning, contributing to the product concept and advising us on the direction to take and the technologies to use. Wireframes of the solution were then created and continuously reviewed with our team to ensure alignment.
Ultimately, the application allows users to:
Select a background or create an entirely new one with the support of artificial intelligence. Decorate the box with stickers and custom text. Send their design via email as a postcard, complete with a 3D project preview. This interactive and innovative approach has added significant value to the exhibition experience.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Regular Client Demos
At every stage of the project, LeanCode presented interactive demos to keep us updated on progress and ensure alignment with our vision. This iterative approach allowed us to provide feedback early, minimizing delays and ensuring the final product met our expectations.
User-Centric Testing
Each screen and functionality of the application was thoroughly tested with end users to ensure it was intuitive, engaging, and effective. These usability tests provided valuable insights that were incorporated into the design, resulting in a polished and user-friendly application.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
On-Time Delivery with High-Quality Standards LeanCode adhered to a structured timeline and delivered the final application on schedule, maintaining exceptional quality at every step. Their agile development process ensured any challenges were quickly addressed, keeping the project on track.
What was your primary form of communication with LeanCode?
In-Person Meeting
Virtual Meeting
What did you find most impressive or unique about this company?
What impressed us most about LeanCode was their comprehensive approach to the project, ensuring every detail was meticulously planned and executed, from selecting the right technologies to managing the overall project. They proactively addressed challenges early on, which was crucial for maintaining momentum and avoiding potential roadblocks. Notably, there were no delays throughout the process, which was especially critical given the fixed deadline for the museum's opening day. Their dedication and precision made them an outstanding partner.
Are there any areas for improvement or something LeanCode could have done differently?
LeanCode demonstrated professionalism and attention to detail throughout the entire project. Honestly, there were no areas that stood out as needing improvement.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
"We would highly recommend LeanCode without hesitation. Their expertise, attention to detail, and commitment to delivering high-quality results made them an exceptional partner. We could count on their expertise and support at every step of app development.
App Management & Support for Mobility Solutions Firm
Application Management & SupportApplication TestingMobile App Development
"We greatly valued their deep knowledge and technical expertise in the Flutter framework."
Sep 9, 2024
Product Manager, Ride Tech
Julian Jagan
Automotive
Switzerland
11-50 Employees
Online Review
A contactless mobility solutions company hired LeanCode to build two apps for customers and internal use. The team also integrated third-party solutions and the client's backend.
LeanCode successfully delivered the applications on time, reduced app crashes, and introduced analytics to measure app growth. The team was highly knowledgeable and receptive from a workflow standpoint, and internal stakeholders praised the service provider's vast development proficiency.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Product Manager of Ride Tech
Describe what your company does in a single sentence.
Contactless mobility solutions
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire LeanCode to accomplish?
Replicate UI designs provided
Work in sync with our backend team to deliver a mobile solution
Deliver a great UX for both consumer and employee facing interfaces
Work flexibly and to deadline to achieve business goals
SOLUTION
How did you find LeanCode?
Referral
Why did you select LeanCode over others?
High ratings
Pricing fit our budget
Great culture fit
Referred to me
Company values aligned
How many teammates from LeanCode were assigned to this project?
6-10 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Leancode were tasked with building two applications one customer facing and one internal facing application. In order to reach this goal, leancode had to integrate a number of third-party solutions for content, payment, authentication and interaction with hardware devices via bluetooth for access to physical vehicles.
Took over an incomplete project and delivered a fucntioning v1 to delivery date
Follow designs and provide feedback on technical feasibility
Integrate mobile applications with our backend
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Delivered apps to stores meeting deadlines
Reduced app crashes with iterative releases
Introduced analytics to measure app growth
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Project was managed well by a product owner from Leancode. Weekly delivery cycles meant features were delivered on time after QA. The team was very reactive to our evolving needs in the post-launch phase.
What was your primary form of communication with LeanCode?
Virtual Meeting
What did you find most impressive or unique about this company?
We greatly valued their deep knowledge and technical expertise in the Flutter framework. Additionally, Leancode's willingness to adapt their processes to fit with our process while preserving their principal values was impressive. Additionally, the focus on communication from the start gave the appropriate overview of daily progress and challenges.
Are there any areas for improvement or something LeanCode could have done differently?
A more visible presence on clutch for us to have engaged with Leancode earlier
A bit longer visibility on personnel issues causing reduced development capacity
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
IT Staff Augmentation for Drug Research Institute
Custom Software DevelopmentIT Staff AugmentationMobile App Development
Flutter
$50,000 to $199,999
Jan. 2023 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They are highly skilled in Flutter."
Jul 24, 2024
Lead Software Engineer, CHDR
Anonymous
Other industries
Leiden, Netherlands
501-1,000 Employees
Online Review
LeanCode has provided developers to expand the size and skill set of a drug research institute's development team. The goal is to build an app for conducting neurological research.
The client is satisfied with LeanCode’s developers, who actively collaborate in developing the software. They communicate well via virtual meetings and email. Customers can expect a team that is highly skilled in Flutter.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Lead Software Engineer of CHDR
Describe what your company does in a single sentence.
We perform clinical trials of new drugs before they come to market.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire LeanCode to accomplish?
Teach our development team how to build apps in flutter.
Expand our development team to quickly build an app for conducting neurological research.
Build a new frontend for our legacy Windows application
SOLUTION
How did you find LeanCode?
Online Search
Why did you select LeanCode over others?
High ratings
Good value for cost
How many teammates from LeanCode were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
We used their developers to expand the size and skillset of our team. The deliverabls were source code, code review, and advice.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Functionality of jointly developed software
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Projectt management was done in house
What was your primary form of communication with LeanCode?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
They are highly skilled in Flutter.
Are there any areas for improvement or something LeanCode could have done differently?
Their staff are young with several still students, making staff availibilty problematic
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Mobile App & Web Dev for Financial Management Platform
Mobile App DevelopmentWeb Development
Amazon Application Development FrameworkFlutter
Confidential
Sep. 2023 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They delivered all items on time and under budget."
May 17, 2024
Co-Founder & CEO, YourOwn
Joshua Lory
Verified
Financial services
San Francisco, California
1-10 Employees
Online Review
Verified
LeanCode has supported a financial management platform in developing a cross-platform iOS and Android app, as well as a web app, which includes handling backend tasks, leveraging Flutter, and conducting QA.
LeanCode has effectively helped the client develop the world's pioneering digital wallet, granting users unparalleled control over their financial data. LeanCode has delivered all tasks on time and under budget — they've been highly invested in the project as though it had been their own.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Co-Founder & CEO of YourOwn
Describe what your company does in a single sentence.
Own your financial data in a secure digital wallet. Use it to build wealth, buy homes, rent places and more.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire LeanCode to accomplish?
Accelerate development of web app
Develop cross platform support for IOS and Android
SOLUTION
How did you find LeanCode?
Referral
Why did you select LeanCode over others?
Pricing fits our budget
Great culture fit
Good value for cost
Referred to me
Company values aligned
How many teammates from LeanCode were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
We contracted with Leancode for their experience with Flutter and strong QA capabiltities. We have a full time mobile developer and part time back end developer on staff.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Developed and launched the worlds first digital wallet that proides indidviduals with control over their financial data. We released web, IOS and android apps to service users across any platform.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Yes. They delivered all items on time and under budget.
What was your primary form of communication with LeanCode?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
The tenacity of their developers to jump in and get things done quickly, with high quality and own the work like it was thier business.
Are there any areas for improvement or something LeanCode could have done differently?
N/A
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Web App Development for Venture Builder
Application TestingCustom Software DevelopmentWeb Development
Azure PlatformNodeJSReact
$50,000 to $199,999
Dec. 2023 - Mar. 2024
5.0
Quality
5.0
Schedule
4.5
Cost
4.5
Willing to Refer
5.0
"The team worked in a timely fashion but at the same time was flexible when we needed to adjust the scope."
Apr 4, 2024
Product Owner, The Heart
Tomasz Wilczak
Verified
Other industries
Warsaw, Poland
11-50 Employees
Online Review
Verified
LeanCode developed a web app for the new venture of a venture builder. Their work was comprehensive, encompassing from conception to usable MVP delivery.
LeanCode delivered fast-paced development work, staying very engaged, professional, and insightful throughout the project. The team worked quickly while remaining flexible to scope changes. Moreover, they offered good communication, leveraging virtual meetings.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Product Owner of The Heart
Describe what your company does in a single sentence.
We are a Venture Builder - we're building digital startups at scale
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire LeanCode to accomplish?
Build an MVP for one of our new ventures
SOLUTION
How did you find LeanCode?
Referral
Why did you select LeanCode over others?
Close to my geographic location
Pricing fit our budget
Great culture fit
Company values aligned
How many teammates from LeanCode were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
LeanCode was responsible for the development of our web app idea from scratch to a usable MVP.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Fast paced development, very engaged , insightful and professional team
Describe their project management. Did they deliver items on time? How did they respond to your needs?
The team worked in a timely fashion but at the same time was flexible when we needed to adjust the scope. Every week we had a demo meeting when could see the current state of the app and the progress made in the previous week.
What was your primary form of communication with LeanCode?
Virtual Meeting
What did you find most impressive or unique about this company?
Engaged and professional team, good communication
Are there any areas for improvement or something LeanCode could have done differently?
I can't think of anything
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
4.5
On time / deadlines
Cost
4.5
Value / within estimates
Willing to Refer
5.0
NPS
Showing 31-38 of
38 Reviews
Our Story
We began as a small group of six dedicated professionals. Today, we've grown to a team of over 80 tech experts, all focused on building software solutions that drive change and help businesses scale.
What sets us apart? Our deep technical expertise is combined with a strong business mindset. Flutter, Google’s leading cross-platform development framework, lies at the core of our work, enabling us to deliver complex projects faster, shorten time-to-market, and ensure top-tier performance.
What Sets Us Apart
World-class Flutter experts
Poland is home to some of the world’s best engineers, and our Flutter team represents the very best of them.
True problem solvers
We go beyond code to understand and solve real business challenges, helping the product move forward and scale effectively.
Enterprise-level consultants
We bring vast experience managing complex IT systems for large enterprises, ensuring they meet rigorous standards of reliability, scalability, and security.
Verified means Clutch independently confirmed LeanCode is a legally registered business, financially sound (Creditsafe: Very Low Risk), and backed by 33 verified client reviews averaging 5.0 stars.
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