Kotlin App
Development Services

Stateside Digitals provides Kotlin app development services, building native Android apps for the full range of devices your customers actually carry, from current flagships to budget hardware still in use.

What Is Kotlin
And Why It Matters For Your Business

Kotlin is a programming language that runs on the Java Virtual Machine and has been Google’s preferred language for Android development since 2019. It was designed to solve specific frustrations in Java rather than to replace it outright, which is why Kotlin and Java files can sit in the same project and call each other without any bridging work.

That compatibility is what makes Kotlin an unusually low-risk change for a business. An existing Android app written in Java does not need a rewrite to start benefiting, and the whole Java library ecosystem built up over decades stays available to you. It is a modern language that does not ask you to throw away what already works.

Built On Java’s Ecosystem

Decades Of Libraries Included

Anything written for the JVM is available to your project, which covers most problems a business application will ever need to solve.

Fewer Lines, Fewer Bugs

Concise By Design

Kotlin removes the repetitive scaffolding Java required, leaving less code to read, less to review, and fewer places for defects to hide.

Google’s Preferred Language

Android’s Official Default

New Android tooling and documentation arrive Kotlin-first, so your project follows the platform rather than trailing behind it.

01

Wide-Device Android Apps

Consumer apps that have to work on flagship phones and inexpensive hardware alike, which is most of the Android market outside the US.

03

Kotlin Backend Services

Server code written in the same language as the app, letting one team hold both ends and share models between them without translation.

Kotlin Multiplatform:
Share Logic, Not Screens

Kotlin Multiplatform lets one codebase hold everything about an app that has nothing to do with how the screen looks: business rules, API calls, validation, offline storage, and data models. That shared code compiles for both Android and iOS, while each platform keeps a fully native interface written in its own language.

This is a different proposition from Flutter or React Native, which share the interface as well. You still build two front ends, so it costs more than a fully cross-platform approach and suits teams who want native feel on both platforms without writing the same business logic twice. We will tell you honestly whether your app has enough shared logic to earn it.

How We Deliver Kotlin
App Development
Services

We build in Kotlin with Jetpack Compose, handling background work through coroutines and Flow. Dependency injection uses Hilt, local storage uses Room, and networking runs on Retrofit. Builds are managed in Gradle and tested with JUnit and Espresso before release through the Play Console. On the server side we work with Ktor or Spring Boot when Kotlin makes sense end to end.
  • Kotlin
  • Jetpack Compose
  • Coroutines
  • Flow
  • Hilt
  • Room
  • Retrofit
  • Gradle
  • JUnit
  • Play Console
  • Ktor
  • Spring Boot

Why Businesses Choose Our
Kotlin App Development Services

Android runs on a far wider spread of hardware than any other platform, and Google raises its target API requirements yearly. We plan around both, so Play Store review never becomes an emergency.

Frequently Asked Questions

We have an old Java Android app. Now what?

It rarely needs a rewrite. Kotlin and Java run together in one project, so we convert the files worth converting and leave the rest until there is a reason to touch them. Most migrations happen alongside normal feature work rather than pausing for it.

Can Kotlin run our backend as well?

How do you handle Android device fragmentation?

Is Jetpack Compose ready for production?

Does Multiplatform mean one team for both apps?

Let’s Build Your
Kotlin App

Tell us which devices your customers use and what the app has to do, and we will scope Kotlin app development services around your users and budget.

FILL THE FORM

Stateside Digitals
@2026
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