Editor's pick
Best private, offline period tracker apps, 2026
After Flo's FTC settlement over sharing cycle and fertility data with Facebook and Google, "private" period tracking can't just mean an anonymous mode bolted onto a cloud app. These two trackers are built the opposite way: your data never leaves the iPhone, and there's no account to leak. QuietCycle handles cycle and fertility logging and ships with no network capability at all, so it physically cannot transmit your data; Ember Log covers the perimenopause and menopause side, logging hot flashes and 100+ symptoms behind Face ID and generating a one-page doctor-visit summary entirely on-device. Pick the one that matches the stage you're tracking.

