• Post a Project

Flutter Development Agency for Enterprise

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:

  • Min project size
    $25,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    50 - 249
  • Locations
    Warszawa, Poland
  • Year founded
    Founded 2016
  • Languages
  • Timezones

2 Languages that we service

  • English
  • Polish

15 Timezones that we service

HST
Hawaii Standard Time (HST)
AKST
Alaska Standard Time (AKST)
PST
Pacific Standard Time (PST)
MST
Mountain Standard Time (MST)
CST
Central Standard Time (CST)
EST
Eastern Standard Time (EST)
AST
Arabia Standard Time (AST)
ACT
Australia Central Time (ACT)
AET
Australia Eastern Time (AET)
CET
Central European Time (CET)
EET
Eastern European Time (EET)
GMT
Greenwich Mean Time (GMT)
MET
Middle East Time (MET)
NST
New Zealand Standard Time (NST)
SGT
Singapore Standard Time (SGT)

1 Locations

  • Warszawa , Poland

No have been added yet...

    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, with clients noting their affordability and alignment with budgets. Specific project costs were not detailed, but clients appreciated timely delivery and effective communication, contributing to positive project outcomes.

    This summary is based on verified Clutch reviews.

    Most Common Project Size

    $50,000 - $199,999 based on 18 reviews
    < $49,999 $50,000 - $199,999 $200,000 - $999,999 > $1,000,000

    Select a service to see pricing information

    LeanCode Review Insights

    Overall Review Rating

    5.0
    • Quality 5.0
    • Schedule 4.9
    • Cost 4.9
    • Willing to Refer 5.0

    Top Mentions

    Review Highlights

    • Proficiency in Flutter Development

      LeanCode's expertise in Flutter development is frequently highlighted across reviews. Clients appreciate their technical proficiency in implementing Flutter solutions, which enhances app performance and cross-platform functionality.

    • Room for Improvement in English Proficiency

      One client noted a minor area for improvement in English language proficiency, suggesting a potential enhancement area for LeanCode to consider.

    • Positive Client Feedback and High User Satisfaction

      Many clients report positive feedback from users of LeanCode-developed applications, citing enhanced user experiences and satisfaction with app functionality.

    • Innovative Problem-Solving Approach

      LeanCode's team is noted for their innovative solutions and ability to tackle complex challenges, providing clients with creative and effective outcomes.

    • Strong Project Management Skills

      LeanCode consistently delivers projects on time and manages tasks effectively. Clients appreciate their structured approach, using tools like Jira and Agile methodologies to ensure smooth project flow.

    • Comprehensive Technical and Business Understanding

      LeanCode is praised for their technical excellence and understanding of business needs. They provide solutions that align with client goals, fostering a partnership rather than just a service provider relationship.

    LeanCode Reviews

    Submit a Review
    All Filters

    0 selected

    Sort by
    Services
    Project Cost
    Industry
    Location

    Custom Software Dev for Banking Services Company

    • API Development Custom Software Development Mobile App Development
    • Confidential
    • Apr. 2022 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "Their developers consistently demonstrate a strong product sense."

    Sep 30, 2025
    Engineering Manager, INFINIT
    Guillaume Lavignotte
    Verified
    • Financial services
    • Paris, France
    • 51-200 Employees
    • Online Review
    • Verified

    LeanCode provides custom software development services for a banking services company. The team has built the client's MVP and is responsible for developing new features and maintaining the software.

    Development Support & Mobile App Dev for Energy Solutions Co

    • Application Testing Custom Software Development Mobile App Development
    • Confidential
    • June 2024 - Apr. 2025
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.5
    Willing to Refer
    5.0

    "They consistently provided insightful solutions to the challenges we encountered."

    Mar 24, 2025
    Head of IoT Department, Viessmann R&D Center Wroclaw
    Przemyslaw Grabarczyk
    Verified
    • HVAC
    • Wroclaw, Poland
    • 10,001+ Employees
    • Online Review
    • Verified

    LeanCode provides development support and mobile app development for an energy solutions company. The team has helped the client transition their existing Android and iOS applications to the Flutter framework.

    Mobile App Development for Telecommunications Company

    • Custom Software Development Mobile App Development
    • Confidential
    • Jan. - Mar. 2025
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "Beyond their technical expertise, they provided support on multiple levels."

    Mar 18, 2025
    Head of Technology, NOS
    Fernando Oliveira
    Verified
    • Telecommunications
    • Portugal
    • 1,001-5,000 Employees
    • Online Review
    • Verified

    LeanCode provided mobile app development, training, and consulting for a telecommunications company. The team migrated natively developed apps to a cross-platform solution using Flutter and offered training.

    Mobile App Migration & Web App Dev for Tenant Platform

    • Mobile App Development Web Development
    • Confidential
    • Jan. 2024 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "I'm impressed with LeanCode's Flutter engineers."

    Sep 11, 2024
    CTO, Avy AB
    Igor Kova
    Verified
    • Consumer products & services
    • Stockholm, Sweden
    • 11-50 Employees
    • Online Review
    • Verified

    LeanCode has supported a tenant platform in the migration of their mobile app from React Native to Flutter. The team has also built a web app using Flutter and supported the client's team during the transition.

    Mobil App Dev & UI/UX Design for Online Casting Agency

    • Application Testing Mobile App Development UX/UI Design
    • Confidential
    • Oct. 2023 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    4.5
    Cost
    5.0
    Willing to Refer
    5.0

    "LeanCode’s dedication, communication, and Flutter expertise have been most impressive."

    Apr 29, 2024
    Executive Director, MMG ART PRODUCTION LLC ( MMG Talent )
    Kasia Golda
    Verified
    • Other industries
    • Dubai, United Arab Emirates
    • 11-50 Employees
    • Online Review
    • Verified

    LeanCode has built an MVP version of an online casting agency's app using Flutter. They've designed the app's UX and launched the beta version to demo testers. The team is now working on the app's full version.

    Mobile App, Mktg Automation & Web Dev for Audiobook Company

    • Custom Software Development Mobile App Development Product Design Web Development
    • Confidential
    • Jan. 2022 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.5
    Willing to Refer
    5.0

    "They keep their deadlines and their word."

    Sep 20, 2023
    CMO, The Audio Bible
    Bartłomiej Majchrzak
    Verified
    • Arts, entertainment & music
    • Poland
    • 11-50 Employees
    • Online Review
    • Verified

    LeanCode has built the mobile app of an audiobook firm. The team has worked on features such as subscriptions, virtual bookmarks, and multi-language content. They've also done marketing and development tasks. 

    Mobile App, Web Dev & UI/UX Design for Financial Services Co

    • Application Testing Custom Software Development Mobile App Development Product Design UX/UI Design Web Development
    • $50,000 to $199,999
    • June 2022 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "Everything is of a high standard!"

    May 15, 2023
    Product Owner, Finelf.com (Kontomierz.pl)
    Marzena Wójcik
    Verified
    • Financial services
    • Gdansk, Poland
    • 11-50 Employees
    • Online Review
    • Verified

    LeanCode has developed a demo app and a website for a financial services company. They've migrated data from the old to the new app version, improved the UX, and developed new features, such as payment options.

    Mobile & Web Development for Sports Technology Platform

    • $50,000 to $199,999
    • Jan. 2021 - Jan. 2022
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "They had extensive knowledge not only of product development but also of available technology solutions."

    Feb 28, 2023
    CEO, Virium Sp. z o. o.
    Dawid Witkowski
    Verified
    • Other industries
    • Olsztyn, Poland
    • 1-10 Employees
    • Online Review
    • Verified

    LeanCode provided mobile and web development for a sports technology platform. They built two mobile apps using Flutter and two web apps using React. The team also built the platform's backend using .NET Core. 

    Web & Mobile App Development for HR SaaS Platform

    • $200,000 to $999,999
    • December 2021
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "We're impressed with their very high technical expertise and engagement."

    Feb 16, 2023
    CTO, Welliba
    Mario Martella
    Verified
    • Other industries
    • Ireland
    • 11-50 Employees
    • Online Review
    • Verified

    LeanCode built a web app and a mobile app for an HR SaaS platform. The web app was developed with React and Tailwind CSS, and the native app was developed with Flutter.

    Showing 1-10 of 35 Reviews

    Design Thinking Workshops

    Whether you're a startup founder, CEO, or business owner, budget and timeline are key concerns, both heavily dependent on scope. An unlimited budget doesn’t guarantee success—careful planning is crucial for product-market fit. In our Design Thinking Workshops, we help turn your vision into a plan that addresses both budget and timeline needs.

    Small

    For Startups

    $6,000 /total
    • Backlog with the scope for MVP: Yes
    • Detailed estimates of the scope: MVP only
    • The list of all risks with the impact estimations: MVP only
    • System Architecture: Overview
    • Product Roadmap: MVP only

    Large

    Enterprise-grade

    $25,000 /total
    • Backlog with the scope for MVP: Yes
    • Detailed estimates of the scope: Yes
    • The list of all risks with the impact estimations: Yes
    • System Architecture: Yes
    • Product Roadmap: Yes
    Features

    Small

    $6,000

    /total

    Medium

    $12,500

    /total

    Large

    $25,000

    /total

    Backlog with the scope for MVP

    Yes

    Yes

    Yes

    Detailed estimates of the scope

    MVP only

    Yes

    Yes

    The list of all risks with the impact estimations

    MVP only

    Yes

    Yes

    System Architecture

    Overview

    Yes

    Yes

    Product Roadmap

    MVP only

    Yes

    Yes

    Stakeholders map

    Yes

    Yes

    Yes

    Persona/Target group

    Adopted

    Designed

    Designed

    Interviews with the target group representatives

    No

    Yes

    Yes

    Low Fidelity Mockups

    Up to 5 screens

    Happy path only

    Multiple paths

    User Flow Diagrams

    No

    Happy path only

    Multiple paths

    Branding

    No

    No

    Optional

    UI Moodboards

    1

    3

    3

    UI Design

    Up to 5 screens

    Happy path only

    Multiple paths

    Design System

    Colors and typography

    Basic components included

    All utilized components included

    Clickable prototype

    No

    Happy path only

    Up to 3 Customer Journeys

    Business Model Canvas

    No

    Yes

    Yes

    Small

    $6,000

    /total

    Backlog with the scope for MVP

    Yes

    Detailed estimates of the scope

    MVP only

    The list of all risks with the impact estimations

    MVP only

    System Architecture

    Overview

    Product Roadmap

    MVP only

    Stakeholders map

    Yes

    Persona/Target group

    Adopted

    Interviews with the target group representatives

    No

    Low Fidelity Mockups

    Up to 5 screens

    User Flow Diagrams

    No

    Branding

    No

    UI Moodboards

    1

    UI Design

    Up to 5 screens

    Design System

    Colors and typography

    Clickable prototype

    No

    Business Model Canvas

    No

    Medium

    $12,500

    /total

    Backlog with the scope for MVP

    Yes

    Detailed estimates of the scope

    Yes

    The list of all risks with the impact estimations

    Yes

    System Architecture

    Yes

    Product Roadmap

    Yes

    Stakeholders map

    Yes

    Persona/Target group

    Designed

    Interviews with the target group representatives

    Yes

    Low Fidelity Mockups

    Happy path only

    User Flow Diagrams

    Happy path only

    Branding

    No

    UI Moodboards

    3

    UI Design

    Happy path only

    Design System

    Basic components included

    Clickable prototype

    Happy path only

    Business Model Canvas

    Yes

    Large

    $25,000

    /total

    Backlog with the scope for MVP

    Yes

    Detailed estimates of the scope

    Yes

    The list of all risks with the impact estimations

    Yes

    System Architecture

    Yes

    Product Roadmap

    Yes

    Stakeholders map

    Yes

    Persona/Target group

    Designed

    Interviews with the target group representatives

    Yes

    Low Fidelity Mockups

    Multiple paths

    User Flow Diagrams

    Multiple paths

    Branding

    Optional

    UI Moodboards

    3

    UI Design

    Multiple paths

    Design System

    All utilized components included

    Clickable prototype

    Up to 3 Customer Journeys

    Business Model Canvas

    Yes

    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.

    Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.

    Learn More
    Verified Client Reviews
    31
    Overall Review Rating
    5
    Source
    Clutch
    Last Updated
    February 18, 2026

    Business Entity

    Business Entity Name LeanCode Sp. z o.o.
    Source Central Statistical Office of Poland
    Jurisdiction of Formation Poland
    Date of Formation September 22, 2016
    Status Active
    Last Updated October 12, 2023
    ID 0000638275

    Credit Report Results

    International Credit Risk Assessment Very Low Risk
    Source Creditsafe
    Last Updated January 1, 2022
    Learn More About The Clutch Verification Process

    Locations (1)

    ul. Wróbla 8A WarszawaPoland 02-736

    50 - 75

    Contact LeanCode

    If you’re not seeing exactly what you need here, send this company a custom message. You can talk about your project needs, price, and timeline to get started on your project.

    Connect with LeanCode on Social

    Get connected to see updates from LeanCode like new case studies, latest reviews, their latest masterpieces in their portfolio, delivered straight to you.

    Grupa Maspex

    (1)
    Grupa Maspex Logotype

    Marta Gawlik

    INFINIT

    (1)
    INFINIT Logotype

    Guillaume Lavignotte

    MAINGAU Energie GmbH

    (1)
    MAINGAU Energie GmbH Logotype

    Steffen

    Neural DSP

    (1)
    Neural DSP Logotype

    Olivier Carnal

    Polarium

    (1)
    Polarium Logotype

    Marcus Schwartz

    Additional Connections

    (4)