{
  "slug": "proton-authenticator",
  "category": "two-factor-authentication",
  "name": "Proton Authenticator",
  "description": "Free, open source authenticator app from Proton for Android, iOS, macOS, Windows and Linux. It works without an account, and signing in with a Proton account adds end-to-end encrypted sync.",
  "website": "https://proton.me/authenticator",
  "source": "https://github.com/protonpass/android-authenticator",
  "license": "GPL-3.0",
  "platforms": [],
  "jurisdiction": {
    "code": "CH",
    "name": "Switzerland",
    "eyes": null,
    "eu": false,
    "gdpr": true,
    "cloud_act": null
  },
  "pick": false,
  "pick_reason": null,
  "disclosure": null,
  "grade": "C",
  "score": 65,
  "coverage": 100,
  "summary": "Proton Authenticator scores 65 out of 100 (grade C) on the two-factor authentication criteria. It meets 2 of 4 criteria: open source and no ads or data sales. It partly meets no trackers or telemetry. It does not meet independent audit. It is based in Switzerland: Not in the Five, Nine or Fourteen Eyes; GDPR-style data protection law.",
  "url": "https://privacyratings.com/two-factor-authentication/proton-authenticator/",
  "markdown": "https://privacyratings.com/two-factor-authentication/proton-authenticator/index.md",
  "answers": {
    "open_source": {
      "title": "Open source",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://github.com/protonpass/android-authenticator/blob/main/LICENSE",
      "note": "GPL-3.0."
    },
    "no_trackers": {
      "title": "No trackers or telemetry",
      "weight": 3,
      "answer": "partial",
      "evidence": "https://proton.me/support/share-usage-statistics",
      "note": "No third-party analytics, but Proton apps share usage statistics and crash reports by default, and these can be turned off in settings."
    },
    "no_ads": {
      "title": "No ads or data sales",
      "weight": 2,
      "answer": "yes",
      "evidence": "https://proton.me/authenticator",
      "note": "Free with no ads. Proton is funded by paid plans."
    },
    "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": [],
    "tested_at": "2026-10-01T07:00:42.564Z"
  },
  "last_modified": "2026-10-01T07:44:20Z"
}