Some period tracking apps put women’s privacy at risk

Women who use period and ovulation tracking apps may be sharing more sensitive information than they realize. Researchers from the Mozilla Foundation tested six popular app and found that privacy protections varied widely, with some sharing data with analytics companies or relying on in-app browsers that expose users to additional tracking. “If your period tracker broadcasts to advertisers that you’re using a period app, that is folded into your ad profile,” Mozilla says. “The next time an ad follows you around the internet, your reproductive health becomes part of the calculus.” Mozilla recommends using the Euki app, which earned a perfect score because it “keeps your data on your phone.”