{
  "slug": "lockdown",
  "category": "firewalls",
  "name": "Lockdown",
  "description": "Open-source firewall app for iPhone, iPad and Mac that blocks connections to tracking, ad and malware domains on the device, with custom block lists.",
  "website": "https://lockdownprivacy.com",
  "source": "https://github.com/confirmedcode/Lockdown-iOS",
  "license": "GPL-3.0",
  "platforms": [],
  "jurisdiction": null,
  "pick": false,
  "pick_reason": null,
  "disclosure": null,
  "grade": "B",
  "score": 80,
  "coverage": 100,
  "summary": "Lockdown scores 80 out of 100 (grade B) on the firewalls criteria. It meets 3 of 4 criteria: open source, no trackers or telemetry and no ads or data sales. It does not meet independent audit.",
  "url": "https://privacyratings.com/firewalls/lockdown/",
  "markdown": "https://privacyratings.com/firewalls/lockdown/index.md",
  "answers": {
    "open_source": {
      "title": "Open source",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://github.com/confirmedcode/Lockdown-iOS/blob/main/LICENSE.md",
      "note": "GPL-3.0."
    },
    "no_trackers": {
      "title": "No trackers or telemetry",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://lockdownprivacy.com/privacy",
      "note": "The privacy policy states the firewall uses no third-party analytics or trackers and sends no data to Lockdown servers."
    },
    "no_ads": {
      "title": "No ads or data sales",
      "weight": 2,
      "answer": "yes",
      "evidence": "https://lockdownprivacy.com/privacy",
      "note": "Funded by paid VPN subscriptions; the firewall shows no ads and collects no data to sell."
    },
    "independent_audit": {
      "title": "Independent audit",
      "weight": 2,
      "answer": "no",
      "evidence": null,
      "note": "No independent audit is published; the earlier OpenAudit site is offline."
    },
    "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": [],
    "tested_at": "2026-10-01T07:00:54.280Z"
  },
  "last_modified": "2026-10-01T07:44:20Z"
}