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Kotlin Multiplatform

Kotlin Multiplatform — JetBrains framework for sharing Kotlin business logic across Android, iOS, web, and server targets.

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Our Verdict

The serious choice for Android-first teams sharing logic to iOS, not a React Native replacement.

Pros

  • Share business logic across Android and iOS
  • Mature JVM interop and tooling
  • Backed by JetBrains and Google
  • Compose Multiplatform for shared UI

Cons

  • iOS integration still rough around edges
  • Smaller ecosystem than React Native
  • Debugging cross-platform issues painful
  • Build times can be slow
Best for: Android-centric teams wanting to share business logic with iOS without rewriting Not for: Web-first teams or small shops without Kotlin expertise

When to Use Kotlin Multiplatform

Good fit if you need

  • Sharing business logic between Android, iOS, and web in Kotlin
  • Cross-platform mobile app development with native UI layers
  • Multiplatform libraries shared between JVM server and mobile
  • Kotlin-first code sharing for teams using Jetpack Compose
  • Gradual KMP adoption starting with shared utility modules

Kotlin Multiplatform Pricing

Pricing Model
free
Free Tier
Yes
Entry Price
Enterprise Available
No
Transparency Score

Beta — estimates may differ from actual pricing

1,000
1001K10K100K1M

Estimated Monthly Cost

$25

Estimated Annual Cost

$300

Estimates are approximate and may not reflect current pricing. Always check the official pricing page.

Lock-in Assessment

Low 5/5
Lock-in Score
5/5

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