Technologies
Kotlin: the official language of modern Android
Google's recommended Android language — for the apps where native makes the difference.
Kotlin is Google's recommended language for Android development, documented on developer.android.com/kotlin, and new applications at major companies are written almost exclusively in it. Compared to Java, which it gradually replaces, the code is more concise and eliminates by design one of the most frequent causes of app crashes. We choose Kotlin and native development when an application demands what cross-platform delivers with difficulty: deep hardware access — industrial Bluetooth, cameras, sensors — maximum performance in animation and processing, tight integration with system services. Honest about budget: native means a separate Android project; if your audience is split between Android and iPhone and the system features are ordinary, Flutter or React Native covers both platforms at a lower total cost. Kotlin earns its place where the native difference is visible and pays for itself.
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What you get
Performance without compromise
Direct access to all Android resources — fluid animation, fast processing and finely controlled battery use, with no intermediate layers.
The full hardware at your disposal
Bluetooth, NFC, sensors, cameras and background services — deep device integrations are written naturally, not through workaround bridges.
Fewer crashes by design
Kotlin's type system rules out null-reference errors at compile time, removing a defect class that otherwise tends to surface only in production.
Frequently asked questions
When is a native Android app worth it over cross-platform?
When you use hardware intensively — scanners, industrial Bluetooth, video processing — when performance is a commercial differentiator, or when your audience is overwhelmingly on Android. Otherwise cross-platform covers two platforms on one budget.
Does our old Java Android app still have a future?
Yes — Kotlin and Java coexist perfectly in one project, so we modernize gradually: new code is written in Kotlin, old code converted only where it brings real benefit. No full rewrite, no pauses.
Is Kotlin only for Android?
No — it runs on servers as a modern Java replacement, and Kotlin Multiplatform shares logic with iOS. It remains first and foremost Android's language of choice though, and that is where we use it most.
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Let’s talk about your project
Message us on WhatsApp or send an email — you talk directly to a developer.
office@northdan.com · +40 752 070 247