Kotlin Multiplatform App Development Company from Poland

No need to choose between native quality and cross-platform efficiency. Get both, saving up to 40% in development costs.

Trusted by:

Kotlin Multiplatform basics


What's all the buzz about Kotlin Multiplatform? We answer the top questions.

What is Kotlin Multiplatform (KMP)?

Kotlin Multiplatform (KMP) is a set of tools developed by JetBrains to streamline and simplify the use of the Kotlin language across multiple platforms. It enables developers to write most of their code in the Kotlin language and then compile it into native code to use seamlessly across different operating systems, such as iOS and Android.

Is Kotlin Multiplatform a cross-platform or native solution?

Kotlin Multiplatform (KMP) is not a typical cross-platform technology like Flutter or React Native. Instead, it’s a versatile set of tools that enables developers to write code in Kotlin, a language that is inherently designed for multiplatform use.

Unlike other cross-platform frameworks, KMP doesn’t rely on its own engine or virtual environment. Instead, it compiles Kotlin code into other languages using specialized compilers:

  • Kotlin/JVM, which compiles Kotlin into Java for Android and server-side applications.
  • Kotlin/JS, which compiles Kotlin into JavaScript for web development.
  • Kotlin/Native, which compiles Kotlin into C or Objective-C for platforms such as iOS, macOS, and Linux.

This way, Kotlin Multiplatform can seamlessly integrate with native environments across platforms.

What types of products are worth creating with Kotlin Multiplatform?

Kotlin Multiplatform is ideal if you:

  • Need to leverage hardware features such as AR, navigation, imaging, telephony, or video conferencing.
  • Need to quickly implement the latest Android and iOS features.
  • Need to adhere to platform-specific design standards, such as Google’s Material Design or Apple’s Human Interface Guidelines.
  • Have existing mobile applications with Android and iOS teams and are looking for a technical partner.
  • Want to integrate new components or simplify development with a common code base.
  • Are competing in markets where a seamless, platform-native experience is essential.
  • Prioritize a native user interface and a customized, platform-specific experience.

Kotlin Multiplatform vs Flutter – what’s the difference?

Cross-platform frameworks like Flutter and React Native often introduce new languages, frameworks, and ecosystems. In contrast, Kotlin Multiplatform (KMP) simplifies the process by enabling developers to continue using the familiar Kotlin language.

Also, Flutter uses its own UI rendering engine, which means it draws everything on the screen itself. This ensures a consistent look and feel across devices, regardless of platform, but it doesn’t use the native UI components of Android or iOS. Kotlin Multiplatform, on the other hand, uses each platform’s native tools, such as Jetpack Compose on Android and SwiftUI on iOS, to build the visual parts of the app. This approach ensures that the app made with KMP adheres to native guidelines, provides a platform-specific look and feel, and is more scalable.

In essence, Kotlin Multiplatform extends native applications by enabling code sharing, while Flutter replaces the native framework with its own. Both KMP and Flutter deliver native performance, but they take different approaches to achieving cross-platform compatibility.

How much does it cost to develop an app using KMP?

The cost of developing an app using Kotlin Multiplatform (KMP) can vary significantly depending on the complexity and scope of the project. Every app is unique, so factors such as features, design, and integrations will affect the final cost. However, we can provide a general estimate based on the type of app:

  • Basic app: $38,000 to $53,000
    (Simple features, minimal UI complexity)
  • Moderate complexity app: $53,000 to $75,000
    (More advanced features, custom UI, integration with APIs)
  • Complex app: Starting at $75,000
    (Advanced functionality, highly customized UI, multiple integrations, large scale)

Please note that these estimates do not include backend development costs, which will vary depending on the needs of your project. For a more accurate estimate, don’t hesitate to contact us.

Our Kotlin Multiplatform app development services


Your one-stop shop for creating digital products

Product strategy workshop

Sign up for our free workshop and get ready to build your app! We will help you define the product goal and the strategy to achieve it.

Product discovery and research

Stop guessing. Our research methods boost your app’s chances to win both the market and user’s hearts.

Product design

From wireframes and clickable prototypes to final polished designs, we create a user experience your audience will love.

Team augmentation

Accelerate your KMP development by bringing our experts on board to work directly with your team.

Production expertise

Optimize build times, improve workflows, and streamline team processes for smoother, more scalable production.

Mobile app development

Turn your app ideas into reality with our team of skilled mobile developers at your side.

Mobile SDK development

Simplify your development process with custom SDKs designed to unify functionality across teams and applications.

KMP readiness assessment

Get ready for Kotlin Multiplatform! We'll assess how ready your team is to start using KMP.

KMP team enablement

Set yourself up for success with our help when it comes to development configurations, onboarding, and workflow optimization.

KMP implementation strategy

Map your path to KMP success with a customized roadmap from our team of experts.

Proof of Concept

See KMP in action! We'll help you prove it's the perfect fit for your organization.

Maintenance

Keep your digital products at their best. We’ll prepare them for system updates, monitor performance, fix errors, and more.

Optimizing existing apps

Boost performance and user satisfaction. We can fine-tune your product to be faster, more reliable, and easier to maintain.

KMP app development for Android, iOS, and more


Maximize reach with custom apps for diverse devices

Phones, tablets: iOS, Android, HarmonyOS

Phones, tablets: iOS, Android, HarmonyOS

Foldables: iOS, Android, HarmonyOS

Foldables: iOS, Android, HarmonyOS

Chromebooks and MacBooks

Chromebooks and MacBooks

Wearables: Wear OS and Apple Watch

Wearables: Wear OS and Apple Watch

TVs: Android TV / Google TV and Apple TV

TVs: Android TV / Google TV and Apple TV

Cars: Android Auto and Apple CarPlay

Cars: Android Auto and Apple CarPlay

Advantages of Kotlin Multiplatform


What do you get when choose Kotlin Multiplatform?

Benefits of Kotlin Multiplatform mobile app development – speed and cost-effectiveness

Fast & cost-effective development

KMP accelerates development by enabling cross-platform code sharing, helping you to save up to 40% in development time and costs compared to building separate native applications.

Kotlin Multiplatform advantages – easy migration and integration

Easy integration & migration

KMP makes it easy to integrate with existing native apps by allowing you to reuse your current Kotlin code. There’s no need to start from scratch or do a full rewrite. Add new features gradually while keeping what already works

Pros of Kotlin Multiplatform Mobile - familiar language and tools

Familiar language & tools

KMP enables developers to continue using the familiar Kotlin language, so there’s no need to learn new frameworks or tools. This means your team can dive straight into the project, speeding up the development process from day one.

Pros od Kotlin Multiplatform - flexible code sharing

Flexible code sharing

KMP offers flexible code sharing, enabling you to choose which parts of your application to share, whether it’s core logic, entire business layers, or even UI components through Compose Multiplatform.

Why Kotlin Multiplatform? Native UI and platform specific features

Native UI and features

KMP lets developers use native UI frameworks like SwiftUI and Jetpack Compose while still having full access to platform-specific features like AR or hardware controls. It’s a flexible way to build apps that look and feel native on both iOS and Android.

Pros of KMP app development - low-risk solution

Low-risk solution

KMP provides a low-risk solution because it can be added or removed at any stage of development. This adaptability ensures that you can always revert to standalone native applications, minimizing potential risks.

About us: Top Kotlin Multiplatform app developers


No you or us, just one product team

We’re Droids On Roids, a team of digital product creators and consultants based in Poland, rocking the market since 2011. We specialize in Kotlin Multiplatform application development. With us, you can strategize, train your team to use KMP, conduct market research, design, develop, scale, and maintain your apps – all under one roof, without the hassle of hiring an in-house team.

Kotlin’s interoperability with Java makes it perfect for Android, while its compatibility with JavaScript allows it to power both frontend and backend web applications. Additionally, Kotlin’s support for C and Objective-C speeds up development for Linux-based systems and Apple platforms like iOS, macOS, watchOS, and tvOS.

What’s more, we:

  • work in a hybrid model, but meet regularly for team-building events, on-site workshops, or just to work side-by-side. Our office is located in the heart of Wroclaw, a leading technology hub in Poland.
  • cooperate with organizations of all sizes, from startups to enterprises.
  • are always learning to stay ahead of the curve, bringing you innovations before your competitors even hear about them. Attending industry conferences and organizing hackathons is just one way we stay ahead and share our expertise in the field

Have an idea for a KMP application? Start working on it right away with a world-class Kotlin Multiplatform application development company offering complete, end-to-end KMP development services. We build digital products both natively and with cross-platform frameworks, and help you decide which approach is best for your project. Tell us about your idea!

No <em>you</em> or <em>us</em>, just one product team

130+

digital products delivered

20

countries where our clients come from

13

years in the market and counting

85+

specialists on board

Our Android app development process


Let’s turn your vision into a success story. Step by step, together.

1

Discussing your idea

Tell us about your vision, problems to solve, and expectations. We’re all ears!

2

Defining the goal

Refine your product's purpose to boost its chances of thriving on the market.

3

Setting the strategy

What will make your product a standout success that’s loved by users? Set the strategy, then get a plan with the timeline, budget, and more.

4

Researching market needs

UX researchers do a deep dive into what users actually want. We use these insights to fine-tune the strategy.

5

Creating your product

It's go time for designing, coding and testing – bringing your idea to life!

6

Launching

Time to let your product fly, introducing it to the market, and scooping up feedback.

7

Further development

Keep the ball rolling with fresh updates and new versions – all driven by market data.

8

Handover to your team

Thinking about bringing the magic in-house? We'll help you build your team and smoothly pass the baton.

1

Task created

The Product Owner describes the Acceptance Criteria

2

Coding

Developers write the code

3

Pull request

Developers prepare a new batch of code for review

4

Continuous integration

Static code analysis, Unit Tests UI, Integration tests

5

The feature is done

The app is updated with the new feature and ready to be reviewed by the PO

6

Merge pull request

If the feature meets quality requirements, it's merged into the main app code

7

Manual tests

QA Engineers test the app manually

8

Code review

Developers verify the code quality

1

Planning

A strategic meeting where the Product Team sets The Goal and decides on the scope for the next iteration.

2

Daily

A quick meeting for Developers to sync up and make a plan for the next 24 hours.

3

Refinement

The process where the Product Team turns business requirements into tasks for the next Sprint.

4

Review

The Product Team gets together to discuss the results from the last iteration and gather feedback on the product.

5

Retrospective

A meeting where the Product Team looks at how they’ve been working and plans improvements for the next iteration.

Go digital the smart way. Your ROI will thank you.


Why is it great to work with us?

  • No more wasting money. Research before strategizing, and strategize before doing.
  • Ideation, launch, scale? You’ve got it covered under one roof.
  • Surprises? Great for parties, not so much for app development. You’ll know each step of your product’s journey.
  • Only data-driven decisions, backed by solid market insights.
  • Quick pivots, flexible planning – we adapt at the speed of your needs
  • No more your and our team. We join forces, all in for a shared goal!
  • Your business goals and user needs are our guiding stars.
Top Kotlin Multiplatform Developers

Have an idea for an app or want to improve an existing one?

Schedule a free consultation with our expert!

    FAQ on Kotlin Multiplatform app development

    Kotlin Multiplatform (KMP) is an open source technology developed by JetBrains that enables flexible cross-platform application development. With this tool, KMP app developers can reuse a single Kotlin codebase across Android, iOS, web, desktop, and server-side applications while retaining the benefits of native programming. This approach ensures high performance and full access to platform-specific SDKs, enabling developers to build applications for different operating systems such as iOS, Android, and others, while retaining native code when necessary for optimal results.

    Yes, KMP is ideal for both Android and iOS development. It enables Kotlin Multiplatform app developers to write common business logic in Kotlin that can be reused across both Android and iOS platforms, reducing duplication of effort.

    Kotlin also offers two-way interoperability with native languages, like Java or Objective-C, so developers can still take advantage of platform-specific features and performance optimizations for each operating system (Android and iOS) while maintaining a common codebase for shared components. This makes KMP one of the top solutions for cross-platform application development.

    Kotlin Multiplatform app developers can efficiently reuse code across a wide range of platforms, including iOS, Android, macOS, Windows, Linux, web, and server-side environments, while retaining the benefits of native programming.

    Thanks to its interoperability with Java, Kotlin works seamlessly on Android and can also be used in desktop and server applications. With support for JavaScript, Kotlin can power both the frontend and backend of web applications. Finally, its compatibility with C and Objective-C enables rapid development for both Linux-based systems and Apple operating systems such as iOS, macOS, watchOS, and tvOS.

    Kotlin Multiplatform (KMP) is a set of tools that enables developers to write code in Kotlin, which is then translated by specialized compilers into native code for the target platforms.

    These compilers include:

    • Kotlin/JVM, which translates Kotlin into Java for Android and server-side applications,
    • Kotlin/JS, which translates it into JavaScript for web development,
    • Kotlin/Native, which translates it into C or Objective-C for platforms such as iOS, macOS, and Linux.

    In this way, Kotlin Multiplatform app development companies can streamline the app development process.

    Also, the translation from Kotlin to native code occurs only once before the app is deployed, ensuring that the final product is fully native, similar to apps built without KMP. This enables efficient cross-platform development while maintaining high performance and platform-specific core functionality throughout.

    Kotlin Multiplatform (KMP) offers several application development advantages that make it a strong choice for building cross-platform applications:

    • Faster and easier native development: By sharing code across platforms, KMP can speed development making it easier to build or extend native applications.
    • Cost-effective: Choosing KMP instead of building two separate applications will save you up to 30% on development costs.
    • No new language or framework required: Developers can use the familiar Kotlin language without having to learn new tools or frameworks, enabling a quick start with KMP.
    • Flexible code sharing: KMP lets you decide how much of your application to share, whether it’s just the core logic, the entire business layer, or even UI elements using Compose Multiplatform.
    • Direct access to native functionality: KMP allows for the direct use of platform-specific dependencies without relying on third-party solutions or custom bridges, ensuring smooth integration with native tools.
    • Easy integration with existing projects: You can add KMP incrementally to existing native applications without a complete rewrite, making it a flexible addition.
    • Low-risk implementation: KMP can be added or removed from a project at any stage, enabling you to revert to fully independent native applications when needed, minimizing risk.

    Kotlin Multiplatform (KMP) differs from other cross-platform solutions like Flutter and React Native in that it enhances native application development, not replaces it. While Flutter and React Native introduce new languages, frameworks, and entire ecosystems, KMP keeps things simple by helping developers to continue using the familiar Kotlin language.

    KMP focuses on sharing core logic across platforms, with Kotlin compilers translating that shared code into platform-specific code for Android, iOS, Web, and more. The shared code is then used within native applications, ensuring that developers can maintain the native performance and UI without having to adopt an entirely new development framework or language.

    You should choose Kotlin Multiplatform (KMP) when you want the benefits of both native and cross-platform development. Here’s when KMP is the right choice:

     

    • Building a mobile application: KMP enables you to build native applications with much less effort than traditional development, while maintaining native performance and design.
    • Existing native applications: KMP can help you reduce the effort to deliver new features, improve maintenance, and increase cross-platform consistency without requiring a complete rewrite. You can integrate KMP incrementally into your existing code base.
    • Expand to new platforms: If you have an Android app and want to extend it to iOS, KMP allows you to reuse existing Kotlin code, greatly accelerating development. Just add a native UI for the new platform and go.
    • Complex hardware usage (AR/IoT): If your application relies heavily on hardware features such as cameras, sensors, Bluetooth, or NFC, KMP provides direct access to native APIs, unlike Flutter or React Native, which often require third-party libraries or custom bridges.
    • 3rd party integrations and SDKs: KMP supports direct integration with native SDKs for advanced functionality, such as document scanning, payments, or biometric authentication, bypassing the limitations of Flutter and React Native’s third-party alternatives.
    • Smart devices beyond mobile: KMP is ideal for building applications for wearables, smart TVs, and automotive systems that are not currently officially supported by Flutter and React Native.
    • Large and complex applications: If you are building a large, highly competitive application, KMP enables you to deliver a high-performance native experience with shared logic and platform-specific customization, making it easy to maintain and evolve as your application scales.

    The cost of developing an app using Kotlin Multiplatform (KMP) can vary depending on the specifics of the project, such as complexity, features, and design requirements. However, in general, developing a mobile app using a KMP is often about 30% less expensive than building two separate native apps for Android and iOS.

    This cost reduction is primarily due to KMP’s ability to share core logic across platforms, reducing duplication of effort while still delivering a native experience on each platform. While every project is different, KMP’s efficiency enabling code sharing typically results in lower development costs and faster timelines compared to traditional native app development.

    If you want to reduce development time and costs, consider cross-platform solutions such as Flutter, React Native, or Kotlin Multiplatform (KMP). These technologies allow you to build applications for multiple platforms using a common codebase, significantly reducing development time, effort, and cost.

    In particular, KMP supports the sharing of core logic across platforms while maintaining native UI and performance. By leveraging the power of the Kotlin language, KMP can accelerate development by up to 30%, allowing you to deliver features faster and reduce the overall cost of maintaining and building your application. It’s an ideal solution for organizations looking to streamline their development efforts without compromising the native experience.

    Converting a native application to Kotlin Multiplatform (KMP) is much easier than starting from scratch with other cross-platform solutions. With KMP, you don’t need to rewrite your entire app. Instead, you can migrate incrementally by moving more Android code into a shared module that can also be integrated into your iOS app. This approach enables you to maintain the quality and functionality of your app while realizing the benefits of cross-platform development much sooner.

    KMP is also flexible, meaning it can be integrated at any stage of your app’s lifecycle – whether you’re starting a new project, working on an MVP, or have a mature product. This is a huge advantage over traditional solutions, where you often have to choose between a fully native or cross-platform application.

    To choose the best Kotlin Multiplatform app development company for your project, start by evaluating their portfolio to ensure they have strong experience in providing Kotlin Multiplatform app development services. Look for projects that demonstrate their expertise in KMP and see if they have successfully implemented solutions similar to what you need.

    Next, check reviews on platforms like Clutch to get an idea of their reputation. Focus on KMP app development companies with positive client feedback, especially in the context of Kotlin multiplatform development and app developers, as well as their ability to meet client needs.

    Once you’ve narrowed down a few companies, reach out to them and have direct conversations. This will help you determine if their KMP app developers understand your vision and match your expectations. Communication and compatibility are essential, so finding a company that is a good match for your project and working style is crucial for a successful collaboration.