# Flutter vs Qt

**Leader by Vioscale score:** Flutter

| Attribute | Flutter | Qt |
|---|---|---|
| **Vioscale score** | 59.2 (79% (high)) | 38.5 (57% (medium)) |
| activity.commits_last_30d | 100 | - |
| adoption.dependent_repos | 9 | - |
| adoption.github_stars | 178,663 | - |
| content.faq | `[{"answer":"Flutter is an open source framework designed for building applications across mobile and additional platforms. It emphasizes rapid development cycles while enabling developers to create visually polished user interfaces.","source":"https://flutter.dev","question":"What is Flutter?","confidence":0.95},{"answer":"Flutter is open source software with no licensing fees or subscription costs. Developers can download and use it freely for both personal and commercial projects.","source":"https://flutter.dev","question":"What is the cost of using Flutter?","confidence":1},{"answer":"Yes, Flutter's open source license permits unrestricted commercial use. You can develop and distribute commercial applications without royalty payments or licensing restrictions.","source":"https://flutter.dev","question":"Can I build commercial products with Flutter?","confidence":0.95},{"answer":"Flutter is designed primarily for mobile application development and supports mobile platforms plus additional targets described as 'beyond' mobile. The complete list of supported platforms is not detailed in available product information.","source":"https://flutter.dev","question":"What platforms does Flutter support?","confidence":0.7},{"answer":"Flutter is intended for developers and organizations building mobile applications who prioritize both development speed and application quality. As a free, open source tool, it's accessible regardless of organization size or budget.","source":"https://flutter.dev","question":"Who should consider using Flutter?","confidence":0.85},{"answer":"Flutter is designed for creating feature-rich mobile applications with polished user interfaces. The framework emphasizes making it feasible for developers to build high-quality applications efficiently.","source":"https://flutter.dev","question":"What types of applications can Flutter create?","confidence":0.85}]` | - |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"cloud":true,"hybrid":true,"self_hosted":true}` |
| description.long | An open-source framework that compiles applications to native machine code for mobile and desktop platforms, and to JavaScript for web, enabling developers to create apps for multiple platforms using a single Dart codebase. | Qt is a comprehensive platform providing libraries, frameworks, and development tools for creating user interfaces and applications that run consistently across multiple platforms. It enables developers to design, build, test, and maintain software from concept through deployment using a unified toolset. |
| features.capabilities | `{"targets":"iOS, Android, Web, Desktop (Windows, macOS, Linux), Embedded","approach":"multiplatform","language":"Dart","hot_reload":true,"web_target":true,"native_widgets":false,"desktop_support":true,"official_ui_kit":true,"single_codebase":true,"typescript_first":false,"native_api_access":"plugin_bridged"}` | `{"targets":"Embedded systems, microcontrollers, iOS, Windows, macOS, web","approach":"multiplatform","language":"C++, QML","hot_reload":true,"web_target":true,"native_widgets":true,"desktop_support":true,"official_ui_kit":true,"single_codebase":true,"typescript_first":false,"native_api_access":"full"}` |
| integrations.count | 7 | 1 |
| integrations.list | `[{"name":"Firebase"},{"name":"Google Play"},{"name":"Google Pay"},{"name":"Google Wallet"},{"name":"Google Maps"},{"name":"Google Ads"},{"name":"Figma"}]` | `[{"name":"Figma"}]` |
| language.primary | Dart | - |
| license.spdx | BSD-3-Clause | - |
| market.availability | `{"hqCountry":"US","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"hqCountry":"FI","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"ios":true,"mac":true,"web":true,"linux":true,"android":true,"windows":true}` | `{"cli":true,"ios":true,"mac":true,"web":true,"windows":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://flutter.dev","retrievedAt":"2026-08-14T16:46:30.818Z"}` | `{"type":"quote","plans":[{"free":false,"name":"Extended Security Maintenance","summary":"Contact sales. Developer License required.","features":["Critical vulnerability patches","Limited to Qt libraries only","3-year availability"],"commitment":"annual","description":"Critical security patches and maintenance for supported Qt Framework releases after end-of-support","contactSales":true},{"free":false,"name":"Premium Security Maintenance","summary":"Contact sales","features":["Environment-specific patches","Patch analysis and porting","For customers with ESM","3-year maximum"],"commitment":"annual","description":"Extended security maintenance customized for specific Qt versions and platforms beyond standard ESM offering","contactSales":true}],"summary":"Contact sales. Free tier for open source development; Developer License required for commercial use.","freeTier":true,"sourceUrl":"https://www.qt.io","retrievedAt":"2026-08-16T21:35:37.793Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | quote |
| pricing.price_level | free | low |
| pricing.transparent | - | no |
| release.cadence_days | 32 | - |
| release.history | `[{"url":"https://github.com/flutter/flutter/releases/tag/3.19.0-0.1.pre","date":"2024-01-11T18:31:57Z","type":"stable","version":"3.19.0-0.1.pre"},{"url":"https://github.com/flutter/flutter/releases/tag/3.18.0-0.1.pre","date":"2023-12-12T00:03:37Z","type":"stable","version":"3.18.0-0.1.pre"},{"url":"https://github.com/flutter/flutter/releases/tag/3.17.0-0.1.pre","date":"2023-12-11T23:58:45Z","type":"stable","version":"3.17.0-0.1.pre"},{"url":"https://github.com/flutter/flutter/releases/tag/3.16.0-0.1.pre","date":"2023-10-20T15:41:27Z","type":"stable","version":"3.16.0-0.1.pre"},{"url":"https://github.com/flutter/flutter/releases/tag/3.15.0-15.1.pre","date":"2023-09-15T17:18:40Z","type":"stable","version":"3.15.0-15.1.pre"},{"url":"https://github.com/flutter/flutter/releases/tag/3.14.0-0.1.pre","date":"2023-08-21T19:24:14Z","type":"stable","version":"3.14.0-0.1.pre"},{"url":"https://github.com/flutter/flutter/releases/tag/3.13.0-0.1.pre","date":"2023-07-12T18:58:22Z","type":"stable","version":"3.13.0-0.1.pre"}]` | - |
| security.iso27001 | - | yes |
| security.scorecard | 7 | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fflutter%2Fflutter&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (Mobile App Frameworks)

| Capability | Flutter | Qt |
|---|:--:|:--:|
| **Core** |  |  |
| Target platforms | iOS, Android, Web, Desktop (Windows, macOS, Linux), Embedded | Embedded systems, microcontrollers, iOS, Windows, macOS, web |
| Approach | Multiplatform shared logic | Multiplatform shared logic |
| Primary language | Dart | 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 | ✓ | ✓ |

*Source: Vioscale. Generated 2026-09-01T16:45:06.577Z. "-" = undocumented, not absent.*