Softwr

Developer Tools · head to head

JetBrains Rider vs Kotlin Multiplatform

JetBrains Rider logo

JetBrains Rider

Developer Tools

Cross-platform .NET IDE from JetBrains for C#, F#, VB.NET and Unity

From
$18.25/month
Rated
-
Full reviewWebsite
Kotlin Multiplatform logo

Kotlin Multiplatform

Mobile Development

JetBrains-funded technology for sharing Kotlin business logic across iOS, Android, web, desktop and server

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Kotlin Multiplatform has a free tier, so it costs nothing to try first.
  • Each has a real cost: JetBrains Rider requires a paid subscription with no permanently free commercial tier.; Kotlin Multiplatform it shares logic, not UI, by default, so a team expecting a Flutter-style single UI codebase has to also adopt Compose Multiplatform, which is newer and less proven on iOS than on Android.
  • They diverge on capability: JetBrains Rider covers Cross-platform .NET Development, Kotlin Multiplatform covers Shared Kotlin logic.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which JetBrains Rider and Kotlin Multiplatform actually diverge.

Attributes where JetBrains Rider and Kotlin Multiplatform differ
AttributeJetBrains RiderKotlin Multiplatform
Starting price$18.25/monthFree
Pricing modelsubscriptionOpen source, no licence fee
Free tierNoYes
Platformswindows, mac, linuxiOS, Android, Windows, macOS, Linux, Web
CategoryDeveloper ToolsMobile Development
Founded2000Unknown

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in JetBrains Rider

  • Cross-platform .NET Development
  • ReSharper-powered Code Analysis
  • Integrated Debugger and Profiler
  • Version Control Integration
  • Unity Support

Only in Kotlin Multiplatform

  • Shared Kotlin logic
  • Native UI retained
  • Compose Multiplatform (optional)
  • IDE tooling
  • Gradle-based builds
  • Incremental adoption

What people use each for

The jobs each tool is most often brought in to do.

JetBrains Rider

  • Cross-platform .NET and ASP.NET Core developmentnot Kotlin Multiplatform
  • Unity game development and debuggingnot Kotlin Multiplatform
  • Large-scale C# refactoring with ReSharper-grade analysisnot Kotlin Multiplatform
  • Teams standardizing on JetBrains tooling across languagesnot Kotlin Multiplatform

Kotlin Multiplatform

  • A company with existing separate native iOS and Android codebases wanting to stop duplicating business logic and networking codenot JetBrains Rider
  • A team that wants shared logic but is not willing to compromise on fully native UI per platformnot JetBrains Rider
  • An organisation already using Kotlin on the backend that wants to reuse the same models and validation on mobile clientsnot JetBrains Rider
  • A team evaluating Compose Multiplatform for UI sharing but wanting the option to fall back to native UI per screennot JetBrains Rider

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

JetBrains Rider

  • Requires a paid subscription with no permanently free commercial tier.
  • Heavier resource usage than lightweight editors like VS Code for small projects.
  • Some advanced features overlap with a separate ReSharper Visual Studio plugin, causing licensing confusion.
  • First-year pricing increased in late 2025, raising the cost of entry versus prior years.

Kotlin Multiplatform

  • It shares logic, not UI, by default, so a team expecting a Flutter-style single UI codebase has to also adopt Compose Multiplatform, which is newer and less proven on iOS than on Android.
  • iOS interop relies on Kotlin/Native compiling to a framework consumed from Swift, and debugging across that boundary is more friction than debugging pure Swift or pure Kotlin.
  • Because logic-sharing is the whole premise, teams still need genuine iOS and Android UI expertise on staff; it does not reduce the native skills bar the way a full cross-platform UI framework aims to.
  • Build times and tooling maturity for multiplatform Gradle projects lag behind single-platform Kotlin or Swift projects, and multiplatform-specific build errors are less well documented.
  • JetBrains funds it as part of the broader Kotlin investment, so its roadmap priority competes internally with IntelliJ, Android Studio and other JetBrains commitments rather than having dedicated headcount the way Flutter has at Google.

Pricing, plan by plan

JetBrains Rider

$18.25/month
  • Individual - Year 1$219/year
    • Full Rider IDE license
    • Free minor and major updates during subscription
  • Individual - Year 2$175/year
    • Continuity discount after first year
  • Individual - Year 3+$131/year
    • Further continuity discount from third year onward

Kotlin Multiplatform

Free
  • Kotlin MultiplatformFree
    • Apache 2.0 licensed, unlimited apps
    • IDE tooling in the free Android Studio and free-tier IntelliJ IDEA Community
    • No paid Kotlin Multiplatform edition exists

Which should you pick?

Choose JetBrains Rider if

  • You need cross-platform .net development.
  • You work on windows, mac, linux.
  • You also want resharper-powered code analysis.
JetBrains Rider review

Choose Kotlin Multiplatform if

  • You need shared kotlin logic.
  • You want to start without paying.
  • You work on iOS, Android, Windows, macOS, Linux, Web.
  • You also want native ui retained.
Kotlin Multiplatform review

Questions people ask

Is JetBrains Rider or Kotlin Multiplatform better?
Neither clearly leads. JetBrains Rider starts at $18.25/month and Kotlin Multiplatform at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, JetBrains Rider or Kotlin Multiplatform?
Kotlin Multiplatform has a free tier; the other does not. Paid plans start at $18.25/month for JetBrains Rider and Free for Kotlin Multiplatform.
Does JetBrains Rider or Kotlin Multiplatform run on more platforms?
JetBrains Rider runs on windows, mac, linux. Kotlin Multiplatform runs on iOS, Android, Windows, macOS, Linux, Web.
Can I use Kotlin Multiplatform for free?
Yes. Kotlin Multiplatform has a free tier, so you can try it without paying. JetBrains Rider starts at $18.25/month.
What is JetBrains Rider best used for?
JetBrains Rider is most often used for cross-platform .net and asp.net core development, unity game development and debugging, large-scale c# refactoring with resharper-grade analysis, teams standardizing on jetbrains tooling across languages. Of those, cross-platform .net and asp.net core development and unity game development and debugging are not what Kotlin Multiplatform is typically brought in for.
What can JetBrains Rider do that Kotlin Multiplatform cannot?
JetBrains Rider covers Cross-platform .NET Development, ReSharper-powered Code Analysis, Integrated Debugger and Profiler, Version Control Integration. Kotlin Multiplatform covers Shared Kotlin logic, Native UI retained, Compose Multiplatform (optional), IDE tooling.

Answered from the vendors’ own pages

JetBrains Rider: Does Rider have a free version?

JetBrains offers a free non-commercial license for Rider for personal, non-commercial use, alongside paid commercial subscriptions with continuity discounts after the first year.

Source
Kotlin Multiplatform: Does Kotlin Multiplatform replace my native UI code?

Not by default. It shares business logic and data layers; UI stays native per platform unless you separately adopt Compose Multiplatform.

JetBrains Rider: What counts as non-commercial use under the free license?

Learning, open-source contributions without commercial benefit, content creation like monetized tutorials, and hobby projects qualify; any paid work or commercial release does not.

Source
Kotlin Multiplatform: Is there a paid version?

No. It is Apache 2.0 licensed and free, funded by JetBrains as part of the Kotlin project.

JetBrains Rider: Does the free non-commercial license include all Rider features?

Yes, it is a full-featured IDE identical to the paid version, with one exception: Code With Me is limited to the Community tier instead of the premium tier.

Source
Kotlin Multiplatform: Do I need Compose Multiplatform to use it?

No, they are separate. You can share only logic and keep fully native UI on each platform indefinitely.

JetBrains Rider: How often does the non-commercial license renew?

It issues a one-year license that renews automatically each year, provided Rider was opened at least once during the preceding six months.

Source
JetBrains Rider: What support do non-commercial license holders get?

Non-commercial users get community forums and public bug trackers rather than private support tickets, which are reserved for paid subscribers.

Source
Share

Related pages

More on JetBrains Rider

More on Kotlin Multiplatform

Keep looking

Other head to heads