With over 22 years of development experience

We are your Technology Partner in app development

We turn your ideas into tangible digital products: from the creative concept to the technical execution, ensuring consistency, functionality and excellence.

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Discover the results

Advanced App Development

High-speed app design and development with Kotlin Multiplatform

Strategic creativity

Design focused on experience and usability, aligned with your brand and ideal user.

Custom apps

Robust and scalable solutions with KMM, optimised for high performance and easy to evolve.

Production quality

Technical review, testing, version control and professional deployment to guarantee a flawless app.

Agility and adaptation

Progressive delivery, clear communication and flexibility to improve based on real feedback.

Integrations

We connect your app to any service or tool via API to maximise the efficiency of your processes.

ASO Ready

We build fast, stable apps with the best user experience: the perfect foundation for an effective ASO strategy and more downloads.

Team and methodology

We take care of everything: from user experience, visual design and backend (if needed), to integrations, custom KMM development, testing and launch. And afterwards: maintenance, evolutions, usage analytics, reports and ASO.

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Mobile technology

At RSB we bet on the Google technology that is transforming the market

Kotlin Multiplatform Mobile (KMM). It lets us create native apps for iOS and Android with a single core codebase, drastically reducing maintenance time and spectacularly minimising errors.

A single code core for two platforms

It lets you share the main app logic (business, data, integrations, models…) between iOS and Android, keeping only the native UI layer. That reduces development time and costs compared to maintaining two separate codebases.

Less maintenance and fewer errors

With a single centralised logic, any change or fix is applied to both platforms at the same time. This reduces bugs, inconsistencies and the maintenance load.

Native performance

Unlike hybrid frameworks, the interfaces remain native (SwiftUI/UIKit on iOS and Jetpack Compose/XML on Android). This means smoothness, a better user experience and direct access to all operating system features.

Google and JetBrains backing

Kotlin is the official language for Android and is driven by Google and JetBrains. That guarantees a solid ecosystem, extensive documentation, continuous updates and a very active community.

Scalability and future

More and more large companies (like Netflix, VMware or Philips) use Kotlin Multiplatform. The trend is clear: it's a future-proof bet with strong enterprise support.

Flexibility

You can start by sharing just a portion of the logic between iOS and Android (e.g. networking and persistence) and scale up to a fully multi-platform development.