What is Kotlin Multiplatform?
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
What Kotlin Multiplatform does
The capabilities that matter for mobile app frameworks, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Target platforms
- Android, iOS, desktop, and web
- Approach
- Multiplatform shared logic
- Primary language
- Kotlin
- Renders true native UI
- ✓
- Hot reload
- ✓
- TypeScript-first
- ✗
- Over-the-air code push
- -
- Single codebase, multiple platforms
- ✓
- Desktop support
- ✓
- Builds for web
- ✓
- Native API access
- Plugin / bridged
- Bundled UI component library
- ✓
Platform & deployment
Independently observed- iOS
- Web
- Android
Security & compliance
Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality
Kotlin Multiplatform alternatives
Other mobile app frameworks we track, ranked by the same independent score.
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Kotlin Multiplatform, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Capabilities | 81 | 0.08 | 6.7 | ✓ |
| Release cadence | 93 | 0.07 | 6.2 | ✓ |
| Development activity | 42 | 0.12 | 5.0 | ✓ |
| Stars | 81 | 0.03 | 2.7 | ✓ |
| Dependent projects | 20 | 0.08 | 1.6 | ✓ |
| Integrations | 0 | 0.05 | 0.0 | - |
| Security posture | 5 | 0.09 | 0.0 | - |
| Package downloads | 0 | 0.17 | 0.0 | - |
| Security score | 0 | 0.05 | 0.0 | - |
| Developer Q&A activity | 0 | 0.08 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 20 | mediumsource · 2026-08-26 · 65% |
Adoption
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Targets: Android, iOS, desktop, and web · Approach: multiplatform · Language: Kotlin · Hot reload: Yes · Web target: Yes · Native widgets: Yes | mediumsource · 2026-08-16 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | Kotlin | highsource · 2026-08-26 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | Apache-2.0 | highsource · 2026-08-26 · 95% |