Period Tracker Privacy: Data Sharing Beyond Health
Health apps collect intimate data, but many share it with advertising networks and data brokers in ways users don't expect.
What the Investigation Found
A BBC investigation examined privacy practices of period-tracking apps used by millions of people. Many apps share health data with third-party advertisers and data brokers, despite presenting themselves as private health tools.
The data often includes cycle dates, symptoms, sexual activity, and other sensitive health information. This sharing happens through analytics SDKs and advertising networks embedded in the apps.
Regulatory Context
The findings arrive as health data privacy faces increased scrutiny in multiple jurisdictions. Apps marketed as health tools often fall into regulatory gaps between medical device rules and general privacy laws.
Users typically consent through dense privacy policies that obscure the full scope of data sharing. The investigation highlights the gap between user expectations for health privacy and actual app behavior.