Compose Multiplatform vs Flutter Comparison

Kotlin-based UI spanning Android, iOS, desktop, and web

VS
Flutter

Dart-based UI, mature for 6+ years

9 min readCross-Platform

Quick Verdict

For an Android-heavy team comfortable with Kotlin, Compose Multiplatform is the natural fit. For greenfield, design-first projects that need to iterate fast, Flutter wins. Ecosystem maturity still favors Flutter, though Compose Multiplatform is closing the gap quickly — parity by 2027 looks plausible.

Compose MultiplatformFlutter
Read the full verdict

Score Comparison

Loading chart...

Detailed Scoring

Detailed Scoring: Compose Multiplatform and Flutter — category-by-category scores out of 10
CategoryCompose MultiplatformFlutter
Performance
9/10
9/10
Ease of Learning
7/10
9/10
Ecosystem
7/10
10/10
Community
7/10
10/10
Job Market
7/10
9/10
Future-Proof
9/10
9/10

Pros & Cons

Compose Multiplatform

Pros

  • Kotlin — a modern, concise language
  • Direct reuse of Android Jetpack Compose code
  • iOS reached general availability in 2024 (Compose Multiplatform 1.7)
  • Desktop, web, Android, and iOS from a single codebase
  • First-class JetBrains tooling (IntelliJ, Android Studio)
  • Synergy with KMP for shared business logic
  • Support for both Material 3 and Cupertino design
  • Near-native performance

Cons

  • iOS support is newer (2024) — smaller community
  • Flutter's Dart ecosystem (pub.dev) is far larger
  • iOS teams face a real learning curve picking up Kotlin
  • Some platform-specific integrations are still experimental

Best For

Android-heavy teams extending into iOSTeams already in the JetBrains ecosystemKMP projects extending into shared UIProducts spanning desktop, mobile, and webModern, Kotlin-first teams

Flutter

Pros

  • 6+ years mature, with 1M+ developers
  • 40k+ packages on pub.dev
  • Best-in-class hot reload
  • Extensive documentation
  • Full parity between Material and Cupertino widgets
  • Wide commercial adoption (Shopify, BMW, Google Pay)
  • DartPad — an in-browser playground
  • FlutterFlow — a visual builder

Cons

  • Dart is a niche language, mostly specific to mobile dev
  • Android teams face extra learning moving away from Kotlin
  • 4-8MB binary size
  • Perfect native-UI emulation is hard in edge cases

Best For

Greenfield cross-platform projectsDesign-first teams wanting UI consistencyReact/JS developers transitioning into mobileRapid MVPs and startupsTeams leveraging the large Dart package ecosystem

Code Comparison

Compose Multiplatform
// shared/ui/App.kt
@Composable
fun App() {
    MaterialTheme {
        Column(modifier = Modifier.fillMaxSize().padding(16.dp)) {
            Text("Hello Multiplatform", style = MaterialTheme.typography.headlineMedium)
            Button(onClick = { /* shared logic */ }) {
                Text("Action")
            }
        }
    }
}

// iOS entry (iosApp/iosApp/iOSApp.swift):
// import shared
// ComposeViewController()
Flutter
import 'package:flutter/material.dart';

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: Padding(
          padding: EdgeInsets.all(16),
          child: Column(children: [
            Text('Hello Flutter', style: Theme.of(context).textTheme.headlineMedium),
            ElevatedButton(onPressed: () {}, child: Text('Action'))
          ])
        )
      )
    );
  }
}

Conclusion

For an Android-heavy team comfortable with Kotlin, Compose Multiplatform is the natural fit. For greenfield, design-first projects that need to iterate fast, Flutter wins. Ecosystem maturity still favors Flutter, though Compose Multiplatform is closing the gap quickly — parity by 2027 looks plausible.

Get Free Consultation
FAQ

Frequently Asked Questions

Near-native. The 2024 launch demoed a smooth 60fps, though Flutter still holds a marginal edge in edge cases. iOS support has been stable since 1.7+ (Q4 2024).

Related Blog Posts

View All Posts

Related Projects

View All Projects
All Comparisons