{
  "slug": "qt",
  "category": "app-frameworks",
  "name": "Qt",
  "description": "Cross-platform C++ application framework with the Qt Widgets and Qt Quick/QML user interface toolkits, for desktop, mobile and embedded devices.",
  "website": "https://www.qt.io",
  "source": "https://code.qt.io/cgit/qt/qtbase.git/",
  "license": null,
  "platforms": [
    "linux",
    "macos",
    "windows",
    "android",
    "ios",
    "web"
  ],
  "jurisdiction": {
    "code": "FI",
    "name": "Finland",
    "eyes": null,
    "eu": true,
    "gdpr": true,
    "cloud_act": null
  },
  "pick": false,
  "pick_reason": null,
  "disclosure": null,
  "grade": "F",
  "score": 35,
  "coverage": 100,
  "summary": "Qt scores 35 out of 100 (grade F) on the cross-platform app frameworks criteria. It meets 1 of 4 criteria: no ads or data sales. It partly meets open source. It does not meet no trackers or telemetry and independent audit. It is based in Finland: Not in the Five, Nine or Fourteen Eyes; EU member (GDPR).",
  "url": "https://privacyratings.com/app-frameworks/qt/",
  "markdown": "https://privacyratings.com/app-frameworks/qt/index.md",
  "answers": {
    "open_source": {
      "title": "Open source",
      "weight": 3,
      "answer": "partial",
      "evidence": "https://code.qt.io/cgit/qt/qtbase.git/tree/LICENSES/LGPL-3.0-only.txt",
      "note": "Available under LGPLv3 and GPL, or under a commercial license, but a few add-on modules and tools are commercial only."
    },
    "no_trackers": {
      "title": "No trackers or telemetry",
      "weight": 3,
      "answer": "no",
      "evidence": "https://www.qt.io/",
      "note": "The qt.io website loads Google Tag Manager, HubSpot, Optimizely and Sentry."
    },
    "no_ads": {
      "title": "No ads or data sales",
      "weight": 2,
      "answer": "yes",
      "evidence": "https://www.qt.io/pricing",
      "note": "Funded by commercial licenses from The Qt Company, with no ads in the framework."
    },
    "independent_audit": {
      "title": "Independent audit",
      "weight": 2,
      "answer": "no",
      "evidence": null,
      "note": "No independent audit is published."
    },
    "transparency_report": {
      "title": "Transparency report",
      "weight": 2,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "user_notice": {
      "title": "Tells users about requests",
      "weight": 1,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "tls": {
      "title": "TLS configuration",
      "weight": 2,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "security_headers": {
      "title": "Security headers",
      "weight": 1,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "web_standards": {
      "title": "Modern web standards",
      "weight": 1,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    }
  },
  "tests": {
    "ssllabs": null,
    "observatory": null,
    "internetnl_web": null,
    "internetnl_mail": null,
    "trackers": [
      {
        "name": "Google Tag Manager",
        "host": "www.googletagmanager.com",
        "effect": "no"
      },
      {
        "name": "HubSpot",
        "host": "js-eu1.hsforms.net",
        "effect": "no"
      },
      {
        "name": "OneTrust",
        "host": "cdn.cookielaw.org",
        "effect": "none"
      },
      {
        "name": "Sentry",
        "host": "js.sentry-cdn.com",
        "effect": "none"
      }
    ],
    "tested_at": "2026-10-01T07:02:11.871Z"
  },
  "last_modified": "2026-10-01T07:44:20Z"
}