Kotlin Development Services
Native Android & Multiplatform
Native Android apps, Kotlin Multiplatform projects, and server-side Kotlin built by senior engineers who ship production mobile and backend systems.
Trusted by engineering teams at
Procedure is a Kotlin development company that builds modern Android applications, server-side APIs, and multiplatform solutions for teams migrating from legacy Java codebases or starting greenfield mobile projects. Since 2016, Procedure's Kotlin engineers have shipped native Android apps and backend services for clients including ESPN, Treebo, and KredX. For teams that need cross-platform mobile delivery, we evaluate Kotlin Multiplatform alongside React Native based on the product's requirements. Kotlin's full interoperability with Java means existing enterprise systems integrate without rewrites.
Kotlin Development Track Record
Why Kotlin for Your Business
Modern Android development with full Java interoperability.
Google's Preferred Language
Google declared Kotlin the preferred language for Android development. New Android APIs, Jetpack libraries, and official samples are Kotlin-first. Building in Kotlin means building with the platform, not against it.
Safer Code, Fewer Crashes
Kotlin's null safety eliminates NullPointerExceptions, the single most common cause of Android app crashes. Fewer crashes mean higher app store ratings and better user retention.
Java Interoperability
Kotlin compiles to JVM bytecode and calls Java libraries directly. Teams migrate incrementally, file by file, without rewriting existing Java code. Your current investment in Java infrastructure is preserved.
Concise, Readable Syntax
Kotlin requires 30-40% fewer lines of code than equivalent Java. Less code means faster code reviews, fewer bugs, and engineers who spend time on product logic instead of boilerplate.
Multiplatform Potential
Kotlin Multiplatform lets teams share business logic between Android, iOS, and backend. For teams that need maximum native performance across platforms, it's an alternative to React Native worth evaluating.
Kotlin Development Services
Native Android apps, Kotlin Multiplatform, and server-side development.
Native Android Development with Kotlin
Production Android applications built with Kotlin, Jetpack Compose, and modern Android architecture (MVVM, MVI). Material 3 design, adaptive layouts for phones, tablets, and foldables. Apps that follow Google's current best practices, not patterns from five years ago.
Kotlin Multiplatform (KMP)
Share business logic across Android, iOS, web, and desktop without rewriting it per platform. KMP lets you write networking, data models, validation, and caching once in Kotlin, then use native UI on each platform. Google officially recommends KMP for cross-platform business logic as of 2024.
Server-Side Kotlin (Ktor, Spring Boot)
Backend services in Kotlin using Ktor or Spring Boot. Coroutines for efficient concurrent request handling without callback complexity. Kotlin's null safety and expressive syntax reduce production bugs compared to Java backends. Ideal when your Android team also owns backend services.
Android App Modernization (Java to Kotlin)
Migrate existing Android apps from Java to Kotlin incrementally. Kotlin is 100% interoperable with Java, so migration happens file by file without breaking the build. We prioritize high-change areas first to maximize the return on migration effort. Most apps complete migration in 8-16 weeks.
Jetpack Compose UI
Kotlin declarative UI for Android that replaces XML layouts with composable Kotlin functions. Less boilerplate, better state management, built-in animation APIs, and Material 3 support. Compose is Google's recommended approach for all new Android UI and powers apps like Google Maps and Play Store.
Kotlin SDK & Library Development
Custom Android SDKs, payment integrations, and shared libraries for distribution via Maven Central or private repositories. Proper API design, backward compatibility, semantic versioning, and documentation. Built for other developers to consume without frustration.
Industries We Build Kotlin Applications For
Domain knowledge that accelerates delivery and reduces risk.
Financial Services & Fintech
Mobile banking apps, payment wallets, and investment platforms on Android. Kotlin's null safety and coroutines deliver crash-resistant financial apps with smooth real-time data updates.
SaaS & Technology
Android companion apps and Ktor-based backend services. Kotlin Multiplatform shares business logic between mobile and server, reducing duplication across SaaS product surfaces.
Healthcare & Life Sciences
Patient-facing Android apps, health monitoring tools, and clinical workflow applications. Kotlin's type safety and Jetpack Compose UI deliver accessible, HIPAA-compliant mobile experiences.
Education & EdTech
Interactive learning apps, campus mobile portals, and offline-capable study tools. Kotlin's concise syntax accelerates development of feature-rich educational Android applications.
Travel & Hospitality
Booking apps, digital concierge tools, and loyalty programs on Android. Kotlin coroutines handle complex async flows for search, booking, and real-time availability updates.
E-commerce & Retail
Shopping apps, barcode scanning tools, and in-store associate applications. Jetpack Compose delivers performant product catalogs with smooth animations and gesture navigation.
Is Kotlin Right for Your Project?
Modern JVM language. Android's default. Increasingly a backend contender.
Android development (Google's recommended language)
Kotlin is Android's first-class language. Jetpack Compose, Kotlin Coroutines, and the entire modern Android ecosystem are Kotlin-first. New Android projects that start in Java are already behind.
Backend services on the JVM (Spring Boot, Ktor)
Full interoperability with Java means you get the entire Spring ecosystem with concise, null-safe syntax. Ktor provides a lightweight, coroutine-based alternative for microservices.
Kotlin Multiplatform (shared logic across platforms)
Share business logic, networking, and data layers between Android, iOS, web, and backend. Not a UI framework, but shared core logic that reduces duplication without forcing a cross-platform UI.
Teams migrating from Java who want modern language features
Null safety, coroutines, data classes, extension functions, and sealed classes. Kotlin fixes Java's verbosity while maintaining 100% interop. Migrate file by file, not all at once.
If you're building exclusively for iOS, Swift is the native choice. For true cross-platform UI from a single codebase, React Native or Flutter share the UI layer too, not just business logic. For backend-only services where the JVM ecosystem isn't needed, Go or Node.js may be simpler. We help teams pick the right language for each layer of their stack.
Kotlin vs Swift vs React Native: When You Need What
We build with all three. Here's how we decide.
Kotlin (Android + Multiplatform)
Best for
Native Android apps, Kotlin Multiplatform shared logic, JVM backend services, teams migrating from Java
Why
Google's recommended language for Android. Jetpack Compose provides modern declarative UI. Kotlin Multiplatform shares business logic across Android, iOS, and backend without forcing a shared UI framework. Full Java interop means gradual migration.
We use it when
You're building an Android app (or Android-first), want to share business logic across platforms while keeping native UIs, or have JVM expertise and want a modern language with null safety and coroutines.
Swift (iOS native)
Best for
iOS-exclusive apps, deep Apple ecosystem integration, performance-critical mobile experiences
Why
Swift compiles to native ARM code with zero runtime overhead. SwiftUI provides declarative UI for Apple's entire platform family. HealthKit, ARKit, CarPlay, and visionOS APIs are Swift-first. No abstraction layer between your code and Apple hardware.
We use it when
You're building exclusively for Apple platforms, need deep hardware integration (AR, health, car), or require maximum performance on iOS without any cross-platform compromise.
React Native (Cross-platform)
Best for
iOS + Android from one JavaScript/TypeScript codebase, code sharing with React web apps, teams with JavaScript expertise
Why
One codebase, two platforms. React developers can contribute to mobile without learning Swift or Kotlin. The New Architecture (Fabric, TurboModules) eliminates the old performance concerns. Largest mobile framework talent pool by far.
We use it when
Your team is JavaScript-native, you need both platforms with one team and one codebase, or you want to share components and logic between your React web app and mobile app.
Kotlin for Android-native, Swift for iOS-native, React Native when you need both from one team. Kotlin Multiplatform sits in between: native UIs with shared business logic. For pixel-perfect custom UI across platforms, Flutter is another strong option. We help teams pick the right approach based on platform priorities, team skills, and long-term maintenance costs.
Our Approach to Kotlin Development
Modern Android engineering, not legacy patterns wrapped in a new language.
Kotlin-First, Not Kotlin-Translated
Writing Java patterns in Kotlin syntax misses the point. We use Kotlin idioms: sealed classes for state modeling, coroutines for async work, extension functions for clean APIs, and data classes for immutable models. The code should feel like Kotlin, not Java wearing a Kotlin costume.
Compose as the UI Standard
Jetpack Compose is not optional for new projects. XML layouts, Fragments, and the View system are legacy patterns. We build with Compose from day one: composable functions, unidirectional data flow, and declarative state management. The result is less code, fewer bugs, and faster development.
Kotlin Shared Logic, Native Experience
When using KMP, business logic lives in shared Kotlin modules. UI stays native to each platform. We resist the temptation to share UI across platforms because users notice when an app does not feel native. Shared logic, native UX.
Testing That Catches Real Bugs
Compose UI tests, integration tests with real dependencies, and screenshot tests for visual regression. We test user behavior, not implementation details. A test suite should give your team confidence to ship changes, not slow them down with false positives.
Kotlin Team Ownership from Day One
Every Kotlin project is built so your team can maintain it independently. Clean architecture, documented decisions, automated CI/CD, and zero proprietary tooling. We build for your engineers, not our retention.
From Concept to Play Store
Working software every sprint, not just progress updates.
Discovery & Architecture (1-2 weeks)
Define screens, user flows, and technical approach. Choose between Jetpack Compose (Android-only) and KMP (multiplatform). If you have an existing Java Android app, we audit it and plan the migration path. Deliverable: technical spec, architecture diagram, and Figma wireframes.
Design System & Component Library (1-2 weeks)
Build a custom Compose component library implementing your brand's design language. Material 3 theming, dynamic color support, and adaptive layouts for different screen sizes. Components tested in isolation with Compose Preview and screenshot tests.
Kotlin Development & Iteration (6-16 weeks)
Sprint-based Kotlin development with internal builds distributed via Firebase App Distribution for real-device testing. Weekly demos. Kotlin's concise syntax and Compose's declarative model mean faster iteration than traditional Android development.
QA, Performance & Launch (1-2 weeks)
Testing across phones, tablets, and foldables. Compose UI tests, integration tests, and performance profiling with Android Studio's Layout Inspector and baseline profiles. Play Store submission with proper listing optimization.
Post-Launch & Kotlin App Maintenance
Bug fixes, Android OS compatibility updates (Android 16 targeted), feature development, and Play Store policy compliance. Ongoing performance monitoring with Firebase Crashlytics and Performance Monitoring.
Our Kotlin Stack
Every tool earns its place. Here’s what we ship with.
| Layer | What We Use |
|---|---|
| Language | Kotlin 2.x |
| Android UI | Jetpack Compose, Material 3 |
| Architecture | MVVM, MVI, Clean Architecture |
| Dependency Injection | Hilt, Koin |
| Networking | Retrofit, Ktor Client, OkHttp |
| Local Storage | Room, DataStore, SQLDelight |
| Navigation | Jetpack Navigation, Compose Navigation |
| Testing | JUnit, Espresso, Robolectric, Compose Test |
| Server-Side | Ktor, Spring Boot |
| Multiplatform | Kotlin Multiplatform, Compose Multiplatform |
| CI/CD | GitHub Actions, Fastlane, Gradle |
| Distribution | Play Store, Firebase App Distribution |
Jetpack Compose is the default for new Android projects. We use Kotlin Multiplatform when sharing business logic with iOS makes sense, not as a blanket rule. Architecture choices scale with the project - MVVM for straightforward apps, MVI when state management complexity demands it.
Testimonials
Trusted by Engineering Leaders
“What started with one engineer nearly three years ago has grown into a team of five, each fully owning their deliverables. They've taken on critical core roles across teams. We're extremely pleased with the commitment and engagement they bring.”
“We've worked with Procedure across our portfolio, and the experience has been exceptional. They consistently deliver on every promise and adapt quickly to shifting project needs. We wholeheartedly recommend them for anyone seeking a reliable development partner.”
“Procedure has been our partner from inception through rapid growth. Their engineers are exceptionally talented and have proven essential to building out our engineering capacity. The leadership have been thought partners on key engineering decisions. Couldn't recommend them more highly!”
“What started with one engineer nearly three years ago has grown into a team of five, each fully owning their deliverables. They've taken on critical core roles across teams. We're extremely pleased with the commitment and engagement they bring.”
Let's Talk About Your App
Whether it’s a new Android app, Java migration, or Kotlin Multiplatform, we’re happy to talk through your situation.
Schedule a CallNo sales pitch. Just an honest conversation.
What you get
- Engineers with 3+ years of production Kotlin and Jetpack Compose
- Native Android expertise with Material 3 and modern architecture patterns
- Kotlin Multiplatform experience for shared business logic across platforms
- India-based, 4-5 hours of US timezone overlap (EST/PST)
- Direct communication with engineers, not through project managers
Hire Kotlin Developers
Senior Kotlin engineers with production Android and multiplatform experience.
Dedicated Developer
Full-time on your project, integrated into your team. Engineers proficient in Kotlin 2.1, Jetpack Compose, KMP, and modern Android architecture patterns.
Ongoing Android development, 3-month minimum engagement
Team Pod (2-4 Engineers + Lead)
Android + backend + QA for a complete mobile team. Architecture, implementation, testing, and Play Store deployment covered.
Full product ownership, 6-month minimum engagement
Project-Based Delivery
Fixed scope, milestone-based delivery. Defined specs, agreed milestones, and transparent pricing.
Defined scope with clear deliverables, scope-dependent
Starting at $3,500/month per developer for full-time dedicated engagement.
Talk to Us About Your TeamReady to Discuss Your
Kotlin Development Services Project?
Tell us about your Kotlin project. Whether it's a new Android app, migrating from Java, or Kotlin Multiplatform, we'll discuss architecture and give honest next steps.
Loading calendar...
Kotlin Development FAQ
Kotlin app development costs vary by complexity. Simple apps with standard UI run $15,000 to $40,000. Mid-complexity apps (e-commerce, social, data-heavy) range from $40,000 to $120,000. Enterprise Android apps with offline support, SSO, and compliance features run $120,000 to $300,000+. Dedicated Kotlin developer hiring starts at $3,500/month. KMP projects that share logic across iOS and Android typically cost 20-30% less than building separate native apps.