Comparison

Kotlin Multiplatform vs Qt

On the evidence we track, Kotlin Multiplatform leads this comparison with a composite score of 56/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Kotlin Multiplatform full profile →Qt full profile →

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.

★Kotlin Multiplatform56

Qt43

Attribute comparison across 2 tools
Attribute	Kotlin MultiplatformLeader	Qt
vioscaleAI score	56 / 100medium · 62%	43 / 100medium · 71%
Pricing
Free tierpricing.free_tier	-	✓
Modelpricing.model	-	freemium
Price levelpricing.price_level	-	low
Transparentpricing.transparent	-	✗
Integrations
Countintegrations.count	8	3
Security
Certificationssecurity.certifications	-	ISO 27001:2022
Disclosure policysecurity.disclosure_policy	✓	✓
Iso27001security.iso27001	-	✓
Trust centersecurity.trust_center	-	https://www.qt.io/blog/qt-group-achieves-iso-270012022-certification-strengthening-data-security-and-privacy
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.jetbrains.compose.foundation%3Afoundation&per_page=100 · Last 12m: 0	-
Adoption
Dependent reposadoption.dependent_repos	14	-
Github starsadoption.github_stars	19,421	-
Activity
Commits last 30dactivity.commits_last_30d	37	-
Release
Cadence daysrelease.cadence_days	13	-
Historyrelease.history	20 items	-
License
Spdxlicense.spdx	Apache-2.0	-
Language
Primarylanguage.primary	Kotlin	-
Market
Availabilitymarket.availability	-	Available worldwide · HQ FI
Content
Faqcontent.faq	3 items	7 items

Score

vioscaleAI score

Kotlin Multiplatform56 / 100medium · 62%

Qt43 / 100medium · 71%

Pricing

Free tier

Kotlin Multiplatform–

Qt✓

Model

Kotlin Multiplatform–

Qtfreemium

Price level

Kotlin Multiplatform–

Qtlow

Transparent

Kotlin Multiplatform–

Qt✗

Integrations

Count

Kotlin Multiplatform8

Qt3

Security

Certifications

Kotlin Multiplatform–

QtISO 27001:2022

Disclosure policy

Kotlin Multiplatform✓

Qt✓

Iso27001

Kotlin Multiplatform–

Qt✓

Trust center

Kotlin Multiplatform–

Qthttps://www.qt.io/blog/qt-group-achieves-iso-270012022-certification-strengthening-data-security-and-privacy

Vulnerabilities

Kotlin MultiplatformCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.jetbrains.compose.foundation%3Afoundation&per_page=100 · Last 12m: 0

Qt–

Adoption

Dependent repos

Kotlin Multiplatform14

Qt–

Github stars

Kotlin Multiplatform19,421

Qt–

Activity

Commits last 30d

Kotlin Multiplatform37

Qt–

Release

Cadence days

Kotlin Multiplatform13

Qt–

History

Kotlin Multiplatform20 items

Qt–

License

Spdx

Kotlin MultiplatformApache-2.0

Qt–

Language

Primary

Kotlin MultiplatformKotlin

Qt–

Market

Availability

Kotlin Multiplatform–

QtAvailable worldwide · HQ FI

Content

Faq

Kotlin Multiplatform3 items

Qt7 items

Capabilities

Feature-by-feature on the axes that matter for mobile app frameworks. “-” means undocumented, not absent.

Capability comparison for Mobile App Frameworks
Capability	Kotlin Multiplatform	Qt
Core
Target platforms	Android, iOS, desktop, and web	Embedded systems, microcontrollers, iOS, Windows, macOS, web
Approach	Multiplatform shared logic	Multiplatform shared logic
Primary language	Kotlin	C++, QML
Rendering
Renders true native UI	✓	✓
DX
Hot reload	✓	✓
TypeScript-first	✗	✗
Delivery
Over-the-air code push	-	-
Portability
Single codebase, multiple platforms	✓	✓
Desktop support	✓	✓
Builds for web	✓	✓
Capability
Native API access	Plugin / bridged	Full native
Ecosystem
Bundled UI component library	✓	✓

Core

Target platforms

Kotlin MultiplatformAndroid, iOS, desktop, and web

QtEmbedded systems, microcontrollers, iOS, Windows, macOS, web

Approach

Kotlin MultiplatformMultiplatform shared logic

QtMultiplatform shared logic

Primary language

Kotlin MultiplatformKotlin

QtC++, QML

Rendering

Renders true native UI

Kotlin Multiplatform✓

Qt✓

Hot reload

Kotlin Multiplatform✓

Qt✓

TypeScript-first

Kotlin Multiplatform✗

Qt✗

Delivery

Over-the-air code push

Kotlin Multiplatform-

Qt-

Portability

Single codebase, multiple platforms

Kotlin Multiplatform✓

Qt✓

Desktop support

Kotlin Multiplatform✓

Qt✓

Builds for web

Kotlin Multiplatform✓

Qt✓

Capability

Native API access

Kotlin MultiplatformPlugin / bridged

QtFull native

Ecosystem

Bundled UI component library

Kotlin Multiplatform✓

Qt✓

What each one is

The product in its own terms, so the numbers below have context.

Kotlin Multiplatform

Leader

A framework for building applications that run on Android, iOS, desktop, and web platforms, allowing developers to share code across platforms while choosing between shared UI through Compose or platform-specific native implementations

Independently observed

Qt

A C++ framework with integrated development environment, libraries, and tools for creating applications on desktop, mobile, embedded systems, and web. Includes visual design tools, testing utilities, and quality assurance features for cross-platform development.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Kotlin Multiplatform

Leader

Pricing not documented yet.

Qt

Quote-basedFree tier

Contact sales. Free tier for open source development; Developer License required for commercial use.

Extended Security MaintenanceContact sales
- Critical vulnerability patches
- Limited to Qt libraries only
- 3-year availability
Premium Security MaintenanceContact sales
- Environment-specific patches
- Patch analysis and porting
- For customers with ESM
- 3-year maximum

as of 2026-08-16verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	Kotlin Multiplatform	Qt
WebPlatforms	✗	✓
iOSPlatforms	✓	✗
AndroidPlatforms	✓	✗
macOSPlatforms	✓	✗
WindowsPlatforms	✓	✗
LinuxPlatforms	✓	✗
Cloud / SaaSDeployment	-	✓
Self-hostedDeployment	-	✓
HybridDeployment	-	✓

Platforms

Web

Kotlin Multiplatform✗

Qt✓

iOS

Kotlin Multiplatform✓

Qt✗

Android

Kotlin Multiplatform✓

Qt✗

macOS

Kotlin Multiplatform✓

Qt✗

Windows

Kotlin Multiplatform✓

Qt✗

Linux

Kotlin Multiplatform✓

Qt✗

Deployment

Cloud / SaaS

Kotlin Multiplatform–

Qt✓

Self-hosted

Kotlin Multiplatform–

Qt✓

Hybrid

Kotlin Multiplatform–

Qt✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Kotlin Multiplatform

Leader

8 total

Gradle
Maven
Xcode
IntelliJ IDEA
Android Studio
CocoaPods
Swift Package Manager
Spring Framework

Independently observed

Qt

6 total

Figma
Axivion
Chromium
Reynolds & Moore
CMake
NVIDIA CUDA

Independently observed

Still deciding?

Kotlin Multiplatform or Qt: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.