An Overview of Top Flutter App Development Companies

The global cross-platform application development market is expected to reach $546.7 billion by the end of 2033, thriving at around 16.7% CAGR. With its mature ecosystem, code reusability, convenient development based on widgets, and strong performance, Flutter is one of the leading cross-platform development frameworks. In fact, the framework currently has over 175,000 stars on GitHub, a figure that continues to grow as developers star the project. This number shows Flutter’s massive recognition in the developer community.

Even though many companies and development teams claim to be capable of handling Flutter projects of nearly any complexity, finding a truly reliable partner is a challenging task. You need to aim for a team that combines strong technical expertise with transparency and a willingness to take ownership of the project.

In this article, we provide an overview of the top Flutter app development companies to outsource your project to.

To come up with this ranking, we thoroughly researched the global cross-platform development market. We have reviewed over 50 Flutter development companies and selected the top 10 vendors based on their proven track record, technical expertise, and customer feedback. Each profile highlights core strengths and standout points that will help you find a perfect fit for your project.

Leobit

Location: Ukraine/Poland
Company size: 50-249 employees
Hourly rates: $25 – $49/hr

Leobit is a full-cycle software development company with strong experience in mobile and cross-platform development. The company has a strong team that specializes in developing Flutter-based apps that work across different platforms and a solid portfolio of Flutter projects. Leobit originates from Ukraine, but also has a significant global presence with representative offices in Austin, TX, US, Tallinn, Estonia, and Krakow, Poland, as well as a development center in Lviv, Ukraine. The company shows deep involvement across all project stages, ranging from project discovery to support and maintenance.

What makes Leobit stand out:

• Significant portfolio of Flutter-based projects
• Experience with software solutions of different sizes and complexities, from small MVPs to advanced mobile solutions applied by many thousands of users globally
• End-to-end cross-platform development services
• Recognized by Clutch and GoodFirms for excellence in software engineering
• Strong expertise in integrating AI features into mobile apps
• Flexible engagement models for businesses of different sizes

Leobit holds a 4.9/5 star general rating on Clutch, backed by 53+ positive reviews. Clients frequently highlight the team’s agile approach, transparent communication, and technical expertise.

Vention

Location: US, Poland, Lithuania, Austria, Germany, UK
Company size: 1,000 – 9,999 employees
Hourly rates: $50 – $99/hr

Vention is a large international company that specializes in end-to-end software development. The company has experience with customers from over 30 industries. It places strong focus on mobile app development, particularly on cross-platform frameworks like Flutter, React Native, and Xamarin.

What makes Vention stand out:

• Diversity of multi-cultural teams, as the company currently has over 3,000 dedicated developers globally
• Delivery manager and a strategic partner are provided as members of a dedicated team
• Solid market experience and a variety of pre-established practices and solutions that enhance software development
• Strong and clearly structured development approach
• Significant focus on developing and integrating AI features

The company has a 4.9/5 star Clutch rating based on 98 reviews. Most of the clients emphasize the cross-cultural flexibility of Vention’s teams, along with their strong focus on proactive problem-solving.

LeanCode

Location: Warszawa, Poland
Company size: 50-249 employees
Hourly rates: $50 – $99/hr

LeanCode is a Poland-based software development company with a particular focus on Flutter development. They work with a variety of customers globally, placing a specific focus on enterprises. The company provides a variety of Flutter development services, ranging from a complete project coverage by a dedicated team to staff augmentation with experienced Flutter developers. LeanCode also works with customers from diverse industries, placing particular focus on fintech and banking.

What makes LeanCode stand out:

• Particular focus on Flutter development
• Flutter app modernization services
• Multiple workshops and support with useful research materials on Flutter software development
• Experience in cooperating with large enterprise clients, such as Virgin Money, Sonova, Millennium Bank, and Credit Agricole Bank Polska

LeanCode has a profile on Clutch, where the company has a rating of 5/5 stars based on 32 reviews. Many of their customers emphasize the factors like supportive post-delivery services, strong focus on communication, and efficient project management.

Cheesecake Labs

Location: San-Francisco, US
Company size: 50-249 employees
Hourly rates: $50 – $99/hr

The company specializes in full-stack software development. They are primarily focused on mobile and web development. Cheesecake Labs has a strong portfolio of cross-platform development projects, particularly with technologies like Flutter and React Native. The company also has expertise in IoT software development.

What makes Cheesecake Labs stand out:

• Strong focus on blockchain development and data engineering
• Informative blog with multiple articles dedicated to Flutter development
• Over 10 years in the software development market
• Number 95 on the global list of the fastest-growing companies according to Clutch

Cheesecake Labs has 4.9/5 stars based on 62 reviews on Clutch. Most of these reviews focus on the company’s strong communication and technical expertise. Many of their clients also emphasize the company’s ability to combine diverse technologies for efficient web and mobile development.

Droids on Roids

Location: Wrocław, Poland
Company size: 50 – 249 employees
Hourly rates: $50 – $99/hr

Droids on Roids is a Poland-based software development company and a part of Apadmi, one of Europe’s leading digital consultancies. The company specializes in building cross-platform solutions with Flutter. It operates across a range of industries, with healthcare and wellness, finance, e-commerce, and logistics being the prioritized ones. The company also emphasizes its particular expertise in mobile app analytics.

What makes Droids on Roids stand out:

• Significant portfolio of successful Flutter development cases across industries
• Comprehensive suite of Flutter development services, ranging from basic integrations to complex DevOps workflows
• Over 14 years in the software development market
• Assistance with Flutter SDK development

Based on 76 reviews, Droids on Roids has a 4.9/5 star rating on Clutch. Most of the company’s customers emphasize their strong agile approach to project management and technical expertise.

BairesDev

Location: Brazil/Colombia/Argentina/Spain/Mexico/USA
Company size: 1,000 – 9,999 employees
Hourly rates: $50 – $99/hr

BairesDev is a large international company with strong experience in cross-platform app development. The company’s expertise covers a wide range of mobile development technologies. In particular, BairesDev offers a range of Flutter engineering services, from developing apps from scratch to software modernization.

What makes BairesDev stand out:

• Reliance on a large talent pool from Latin America
• Significant focus on the seniority of Flutter developers
• Experience in working with large enterprises
• Recognized by the Financial Times in the America’s Fastest-Growing Companies list of 2024

The company has over 60 reviews on Clutch, with a 4.9/5 star overall rating. Most reviews highlight proactive and transparent communication as one of the main advantages of working with BairesDev.

Somnio Software

Location: Montevideo, Uruguay
Company size: 50 – 249 employees
Hourly rates: $50 – $99/hr

Somnio Software is a Uruguay-based company with a strong Flutter development team. They provide a range of services, from project discovery to staff augmentation, to empower businesses across industries. Somnio Software has particular expertise in developing fintech apps, payment solutions, and e-commerce mobile platforms.

What makes Somnio Software stand out:

• A strong focus on the corporate traditions; the company emphasizes that its headquarters are located in a historical building in Montevideo, Uruguay
• Reliance on a significant Latin American talent pool
• Top Flutter agency in the LATAM region according to Google
• A suite of prebuilt cross-platform apps that can be white-labeled for fintech and e-commerce businesses

Based on 43 reviews, Somnio Software has a 5/5 star rating on Clutch. Many clients praise the company for proactiveness and strong involvement in strategic planning.

hedgehog lab

Location: Newcastle upon Tyne, UK
Company size: 50 – 249 employees
Hourly rates: $100 – $149/hr

hedgehog lab is a software development company with a rich portfolio of long-term mobile development projects. The company partners with leading businesses in the financial sector and organizations across the UK public sector. Meanwhile, its portfolio also includes successful projects in domains like healthcare, travel, logistics, etc.

What makes hedgehog lab stand out:

• Partnership with Google in the Flutter development domain
• Strong focus on a sprint-based approach
• A range of Flutter consultancy services
• Focus on long-term partnerships

The company’s Clutch profile features 82 reviews, giving hedgehog lab a 4.8/5 star rating. Most reviews praise the team’s technical expertise and commitment to client success. Meanwhile, there are some minor remarks regarding challenges with meeting project timelines.

Miquido

Location: Kraków, Poland
Company size: 50 – 249 employees
Hourly rates: $50 – $99/hr

Miquido is a software development company with a strong focus on cross-platform technologies, such as Flutter and React Native. The company partners with global clients from different industries, including entertainment and fintech. Miquido also put a significant emphasis on fintech security practices, as the company has notable experience in Blockchain development.

What makes Miquido stand out:

• Involvement in organizing tech-oriented seminars and events
• Strong focus on integrating AI algorithms
• Multiple industry studies and reports
• Solid UI/UX design expertise

Miquido has 51 reviews and a 4.9/5 star rating on Clutch. Their clients admire the company for its commitment to continuous improvement and technical skills.

JPLoft

Location: Denver, US
Company size: 50 – 249 employees
Hourly rates: $50 – $99/hr

JPLoft is a software development company with a strong focus on AI development. They include cross-platform app development with Flutter in their suite of services. JPLoft’s teams assist their customers across the entire Flutter development lifecycle, from app ideation and consulting to custom API development.

What makes JPLoft stand out:

• Over 15 years of experience in mobile app development
• Experience in AR/VR and IoT software development
• Partnerships with large enterprises like Whirlpool and Nike
• Strong focus on blog and podcast on modern software development technologies
• Significant emphasis on team outstaffing services

JPLoft has 91 reviews on Clutch, ensuring the company’s 5/5 star rating. Most clients emphasize the company’s strong expertise in mobile app development, while there are also some remarks regarding challenges in initial project phases.

Checking reviews matters a lot when you want to hire Flutter developers for your project. However, communication with a potential partner is even more important. You need to ask the right questions and look for signals that indicate whether a partner is a good fit for your project and its key goals.

Questions to ask while choosing a Flutter development company

Here is the list of essential questions that will help you check all your boxes and understand whether a particular provider of Flutter app development services is the right fit for your project.

1. What is your hands-on experience with Flutter?
Known for its widget-based approach and a variety of pre-built elements, Flutter is known as a convenient and developer-friendly framework. However, it requires expertise with the Dart programming language, as well as experience with Skia or Impeller rendering engines that ensure consistent UI across platforms.

It is also important to clarify whether your potential Flutter development partner understands the key state management approaches, such as BLoC, Provider, or Redux. The choice of the right approach determines app performance, stability, and scalability.

Finally, you need to be sure that your vendor can work with different integrated development environments (IDEs), such as Android Studio, Visual Studio Code, and IntelliJ IDEA. Ask the team regarding ideal use cases for each IDE. This will tell you much about their technology expertise.

2. Can you present the most notable Flutter projects you delivered?
Review the vendor’s list or real-life Flutter projects. Clarify the business goals of these projects, the technical challenges encountered by your potential partner, and the approaches they took to meet project needs. A clear description of the project and its flow will help you understand the team’s approach to planning and problem-solving better.

We also suggest paying attention to projects similar to yours in terms of complexity, target platforms, and industry domain. Experience with comparable use cases is a strong indicator that the team can successfully handle your project.

3. What does your Flutter development workflow look like?
A well-defined workflow shows how a Flutter app development company manages planning, development, testing, and deployment. In particular, if the team handles your project from scratch, you may need a solid approach to the discovery phase.

Also, ask the Flutter cross-platform development company about their approach to ensuring code quality, collaboration patterns, version control, DevOps workflows, and debugging. If the vendor has a solid methodology that covers all these and other critical aspects of Flutter development, you may expect them to deliver your project on time and at a high standard.

4. How do you ensure app security?
Application security remains a significant concern in the mobile development domain. In fact, the global mobile app security market is expected to grow from $571.1 million in 2025 to $2,864.0 million by 2032, exhibiting a CAGR of 25.9% during the forecast period. To keep up with security trends, ask a potential partner about their approach to protecting sensitive data and mitigating architectural vulnerabilities.

Reliable vendors should be ready to present well-defined security practices applied to data storage, communications encryption, and API integration. Also, ask the team about their security testing workflows. If you plan to develop an app for a highly regulated industry, such as healthcare, make sure your potential partner has an established framework for HIPAA compliance.

5. Do you provide ongoing support and maintenance?
Flutter and underlying platforms constantly evolve. That’s why you should ask questions regarding the company’s ability to help with Flutter app maintenance and support after the launch. In particular, ask whether your potential partner helps with:

• Post-release bug fixes
• Performance monitoring
• Updates for new Flutter releases
• Updates to fit OS changes on iOS and Android
• Feature improvements based on user feedback

All these factors matter if you want your Flutter application to stay relevant in the long run.

To safeguard you from unpleasant surprises, recognize warning signs about your potential partner early. Here is a list of the most important red flags to consider when evaluating a Flutter app development firm, helping you save time and money.

Lack of experience with Flutter
If your potential partner cannot demonstrate real experience with Flutter development projects, consider it a major red flag. With so many options for partnering with teams that have a proven Flutter track record, choosing one with little or no Flutter expertise is risky. It can lead to missed deadlines and a lower-quality final product.

Unclear development process
A well-organized Flutter application development team should define its workflows in advance. Many projects are dynamic, and their flow may shift over time. However, a clearly defined framework that covers all stages of the project and outlines its critical aspects is critical to display that your team has a strong vision.

If your potential partner cannot define architectural and state management approaches, such as BLoc, Provider, Riverpod, Redux, or MVVM-style patterns, in advance, their team may later struggle with managing the project. This, in turn, increases the risk of missed deadlines and budget overruns.

Lack of transparency and poor communication
Communication and transparency are essential for building strong relationships with your software development partner. Watch out for vendors who:

• Provide incomplete or vague answers to your questions
• Communicate inconsistently
• Do not keep you updated about any changes or challenges encountered while working on the project

Keep in mind that a top Flutter app development company establishes a clear communication strategy from the project onset. This includes meeting frequency, communication channels, task-tracking workflows, and procedures for urgent issues.

Over-promising and under-delivering
If your potential Flutter development partner gives unrealistic promises, it is an ultimate red flag. Even the best Flutter development company has its limits. Building a fully featured cross-platform app from scratch and achieving consistent performance across different devices in just a few weeks might be unrealistic.

If the company over-promises, it might be an attempt to mask a lack of real capability or experience. Any deliverables that seem too good to be true should be supported with realistic plans that outline software planning, development, and testing processes.

Limited or no testimonials and reviews
Client testimonials are one of the strongest indicators of a company’s real-world experience. They are typically available on the company’s website or on third-party platforms such as Clutch and similar review sites.

Even when case studies are available, pay attention to their level of detail. Vague, generic, or overly polished descriptions may indicate fake case studies. In some cases, limited details can be explained by non-disclosure agreements (NDAs). However, if a company is unable to share any specific examples or references at all, this is an ultimate red flag.

Issues with legal or contractual documentation
A reliable Flutter development vendor should have clear templates for major project-related documentation. The main documents to consider are:

• Statement of work (SOW) that outlines team composition and roles, promotion policies, travel expenses, vacation policies, team availability, etc.
• Non-disclosure agreement (NDA) that indicates the parts of the project that are confidential, as well as defines knowledge or information that both you and your vendor can share with one another or external parties for certain purposes.
• Master service agreement (MSA) that defines most of the terms that will govern all future activities and agreements between you and your vendor.

Also, pay close attention to contractual and legal documentation that defines the foundation of your cooperation. If the company provides vague or poorly structured legal terms, it is a warning sign that may indicate a lack of professionalism and commitment.

We at Leobit have extensive experience in building applications with Flutter, as well as other cross-platform development frameworks like .NET MAUI.

Our team has successfully delivered over 40 Flutter-based projects. We provide a wide array of services, ranging from Flutter consulting and development to post-launch support and modernization. Leobit also has a strong team of UI/UX designers ready to deliver user-friendly and convenient app interfaces adapted to different devices.

Let’s take a closer look at some of our outstanding Flutter development projects.

Cross-platform trichoscopy application

We helped an international European customer build a trichoscopy application enhanced with AI algorithms. The solution can transform a standard smartphone into a digital trichoscope. It uses computer vision algorithms to automatically calculate key hair parameters, such as measured area, hair count, density, average length, anagen-telogen ratio, and the density of vellus and terminal hairs.

To ensure a consistent user experience across different operating systems and devices, our specialists used Flutter. Our team significantly extended the framework’s capabilities through custom integrations. In fact, the app uses native Android and iOS APIs to achieve greater efficiency across different operating systems. We also used Dart FFI to integrate the solution with custom image analysis algorithms written in C++. This integration allowed our specialists to reduce image processing time from 2 minutes to less than 10 seconds.

Our developers have used Flutter to build an MVP for a dating app for the African market. By using the BLoC design pattern, we have ensured a clear separation of the app’s business logic and UI/UX design.

Our specialists implemented a convenient swipe-based mechanics, as well as the private chat functionality. The customer has plans for continuous improvement of the application, and our skilled Flutter development team is ready to assist them with this.

While Flutter is a widely adopted and mature cross-platform development technology, finding a strong team for building an app with this framework might be a challenging task.

To find a perfect fit for your project, you should ask the right questions that help you assess your vendor’s Flutter expertise. Also, watch out for red flags that may imply potential issues during the collaboration.

With a significant track record of successful Flutter development projects, Leobit is ready to help you build an excellent cross-platform application. Whether you need to build a simple MVP or a complex mobile solution with AI functionality, Leobit is ready to help.

Contact us to discuss your needs and bring your cross-platform application idea to life.