Privacy Ratings

Period trackers

Clue privacy rating

Period and cycle tracking app from Berlin-based BioWink, with predictions, symptom logging and health content, and a paid Clue Plus subscription.

Germany Fourteen EyesPlatforms: Android · iOS

Summary

Clue scores 7 out of 100 (grade F) on the period trackers criteria. It partly meets no ads or data sales. It does not meet open source, no trackers or telemetry, independent audit, data stays on device and no account needed. It is based in Germany: Fourteen Eyes member; EU member (GDPR).

Score 7 out of 100. How scoring works

Criteria

  • No

    Open source Weight 3 of 3

    Is all the source code needed to run the product public?

    Closed source.

  • No

    No trackers or telemetry Weight 3 of 3

    Are the website and apps free of third-party trackers, with any analytics anonymous and any telemetry off by default?

    The Exodus report finds Adjust and Google Firebase Analytics in the Android app.

    reports.exodus-privacy.eu.org

  • Partial

    No ads or data sales Weight 2 of 3

    Is the product funded without advertising, ad targeting or selling user data?

    Funded by subscriptions, and health data is never shared with advertisers, but with consent device IDs and app events are shared through Adjust with ad networks such as Meta and TikTok.

    helloclue.com

  • No

    Independent audit Weight 2 of 3

    Has an independent security or privacy audit been published within the last three years?

    No independent audit is published.

  • No

    Data stays on device Weight 3 of 3

    Is cycle data stored only on the device by default?

    Cycle data is stored on Clue's servers in the EU, encrypted at rest but not end-to-end encrypted.

    helloclue.com

  • No

    No account needed Weight 2 of 3

    Can the app be used without an account?

    The terms state that Clue is now only an online service and requires an account.

    helloclue.com

Other period trackers

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