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Google Fit and Period Data Privacy: What You Need to Know

Google Fit and Google Health Connect don't store period data by default — but apps that sync through them do. Google's data policies allow advertising use in

Google's health data story is more complicated than Apple's — not because Google is necessarily malicious, but because Google's core business model depends on data in ways Apple's doesn't, and that creates structural differences in how their health data policies work. How Google Fit and Health Connect Actually Work Neither Google Fit nor Google Health Connect automatically collects your period data. They're platforms that apps use to exchange health data, with your permission. How data gets into Google Fit/Health Connect: 1. You use a period tracking app that requests permission to write to Google Fit/Health Connect 2. You grant that permission 3. The app writes your cycle data to Google's health platform 4. That data is now stored in Google's infrastructure If you've never granted any app write access to the menstrual health category, there's no cycle data in Google Fit or Health Connect. How data gets out: Apps can request read access to health data categories from Google Health Connect. If you grant a second app (say, a general health tracking app) read access to the menstrual health category, it can read any cycle data written by other apps. This cross app data sharing is the i