Can I still use the fertility-awareness method without Natural Cycles?

Yes. The fertility-awareness method predates NC. What NC adds is an algorithm that interprets your basal body temperature readings and predicts fertile windows. You can log BBT manually in any tracker and apply fertility-awareness rules on your own, or with a clinician's guidance. This is a different use pattern than NC's one-tap interpretation.

Why does NC cost more than free trackers?

The price funds the FDA-cleared algorithm, clinical studies, and regulatory compliance. Free trackers like Euki and Drip do not carry those costs because they do not claim contraceptive efficacy. If you do not need the contraceptive claim, you are paying for a certification you do not use. That is a common reason users switch even when privacy is not the main concern.

Will Natural Cycles keep my data for FDA compliance?

NC's privacy policy indicates that records associated with FDA-cleared device use may be retained in de-identified form for regulatory reporting. This is different from identifiable account data, which the account deletion removes. The CCPA/GDPR request in step 5 is how you get a specific answer about what NC retains in your case.

guides

How to Switch from Natural Cycles to a Private Tracker

Switching from Natural Cycles? Here's the export, deletion, and CCPA/GDPR process, plus the medical-use caveat to discuss with your doctor.

Why switch from Natural Cycles Natural Cycles sits in a different category than Flo or Clue. It is an FDA cleared digital contraceptive marketed on clinical effectiveness rather than convenience. Users who choose NC are usually paying for the contraceptive claim, not for cycle tracking alone. The two most common reasons users switch are cost and privacy. NC is expensive if you stopped relying on it for birth control and are mostly using it for cycle forecasting. And while NC's privacy posture is better than Flo's, it still stores cycle and basal body temperature data on company servers. That server side copy carries the same subpoena, breach, and policy change risk as any cloud tracker. If you are switching for privacy, on device trackers resolve the server side risk. If you are switching for cost, free on device trackers remove the annual fee. Either way, a clean migration keeps your history portable and minimizes surprise. For more on NC's specific privacy tradeoffs, see our Natural Cycles privacy alternative overview. Important: if you use NC as contraception, talk to your doctor first Natural Cycles is cleared by the FDA as a Class II contraceptive device. Euki, Floriva, Drip,