React Native vs Flutter vs Kotlin Multiplatform

Cross-platform development can cut cost and time-to-market dramatically. But "cross-platform" isn't one thing — the three leading options take very different approaches. Let's compare them fairly.

React Native

Backed by Meta, React Native uses JavaScript/TypeScript and React. It's the pragmatic choice for teams that already know web development.

• Best for: startups, MVPs, content and commerce apps, teams with React/JS skills.
• Pros: huge ecosystem, fast development, easy hiring, great for standard UIs, live updates.
• Cons: very graphics-heavy or hardware-intensive apps may need native modules.

Flutter

Google's framework uses the Dart language and renders its own pixels, giving pixel-perfect, highly consistent UIs across platforms.

• Best for: visually rich apps, custom animations, brand-heavy UIs, apps that must look identical everywhere.
• Pros: excellent performance, beautiful and consistent UI, strong tooling, also targets web and desktop.
• Cons: smaller talent pool than JS, larger app size, Dart is a new language for many teams.

Kotlin Multiplatform (KMP)

KMP shares business logic across platforms while letting you build fully native UIs (SwiftUI on iOS, Jetpack Compose on Android). It's the most "native-friendly" option.

• Best for: teams that want native UI and performance but shared logic; apps evolving from an existing native codebase.
• Pros: true native UX, share networking/data/business logic, incremental adoption, backed by JetBrains & Google.
• Cons: you still build UIs twice; newer ecosystem than RN/Flutter.

So which should you choose?

Rule of thumb: React Native for speed and a JS team, Flutter for a highly custom, beautiful UI, and Kotlin Multiplatform when you want native UX with shared logic.

There's no universally "best" framework — only the best fit for your goals, team and timeline. At Appcoder we work across all three (plus fully native iOS and Android), so our recommendation is never biased toward one tool.