Cycle Privacy Check

Is your current period tracker actually private? Estimate your next cycle and fertile window here, with nothing you type ever leaving your browser.

Select your current method:

Cloud App (Free with Ads)Paper JournalLocal-First App (Dot)

Warning: Most cloud apps sell your data. Only local storage guarantees privacy.

Verification Required: This tool provides estimates for informational purposes only. The data must be validated by the reader against professional sources. The developer assumes no liability for errors.

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