Kotlin Multiplatform: The bridge between Android and iOS

What is Kotlin Multiplatform Mobile (KMM)?

KMM is a framework from JetBrains that makes it possible to write business logic once and share it between Android and iOS. At the same time, developers can still build native user interfaces that follow each platform's guidelines for user experience.

• Android developers can continue using Kotlin, which is the official language for Android.
• iOS developers can integrate KMM libraries directly in Xcode and Swift.

The result is an efficient development process, less code duplication, and better management of complex projects.

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Benefits of KMM

Native app performance‍

Unlike many hybrid solutions, KMM code runs directly on the platform. This delivers the same speed and responsiveness as apps built in Swift or Kotlin.

Better user experience‍

Because the interface is built separately for Android and iOS, each app can look and feel completely right, in line with user expectations.

Faster development‍

By sharing logic and data models between platforms, the team saves time and reduces the risk of errors.

Flexibility

You can start small — for example by sharing only the network or data layer — and expand as the project grows.

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KMM compared to Flutter, React, and React Native

Flutter is a good choice for rapid development and consistent design across platforms, but can feel less "native" in terms of user experience.

React Native makes it easier for web developers to build cross-platform apps, but can have performance challenges with complex features.

KMM offers the best of both worlds: native feel and performance, combined with code reuse that saves time and resources.

When should you choose KMM?

• When you want native quality and performance, but still want to save time on cross-platform development.
• When the app needs to handle advanced logic, for example with complex datasets.
• When you want to build a future-proof solution that can easily be scaled up.

In summary

Kotlin Multiplatform Mobile is an exciting technology for companies that want the best of both native and cross-platform development. It provides flexibility, reduces development costs, and ensures a user experience that meets the high expectations of today's app users.

At Seven Peaks Norway, we work with native apps, Flutter, React, React Native, and KMM, and help you choose the right technology based on your needs and goals.

Wondering which platform best suits your applications? Get in touch with us for a no-obligation chat.