Fertility, Genetic & Wearables · Contraception / fertility app (FDA-cleared) · Regulatory action
Natural Cycles
Headline
Natural Cycles is sold as a contraceptive, not just a tracker, so the real consumer risk is pregnancy, not only privacy.
Not independently verified. Verification status: Unverified - heuristic first draft. Publish state: draft unverified.
Natural Cycles is sold as a contraceptive, not just a tracker, so the real consumer risk is pregnancy, not only privacy. In 2018 the UK advertising regulator ruled its Facebook ad misleading for calling the app 'highly accurate' and a 'clinically tested alternative to birth control,' and Sweden's Medical Products Agency reviewed it after a Stockholm hospital reported 37 app users who sought abortions. The Swedish review found pregnancy rates consistent with the published 93% typical-use figure and closed with no further action, after asking the company to clarify pregnancy risk in its instructions. The FDA cleared it in the U.S. in August 2018 with a warning that unintended pregnancy remains possible even with consistent use.
- Severity
- Evidence tierUnassigned
- Claims confirmed
- Last verified2026-10-16
Primary source. www.digitalhealth.net/2018/09/swedish-authorities-natural-cycles-app-assessment/ — Unverified - heuristic first draft.
Terms
Arbitration
Not verified this pass - terms not retrieved.
Data sharing
Not verified this pass - privacy policy fetch failed. Sensitive category: the app collects basal body temperature, cycle and sexual-activity-adjacent data used for contraception decisions.
Fees and billing
Not verified this pass (subscription product; terms not retrieved).
Contacts
Privacy contact. Not recorded.
Legal notice. Not verified this pass. If publicly traded: SEC Form 10-K cover page gives the official corporate address; otherwise the state registered agent is usually the only reliable route.
Mailing address. Not recorded.
Evidence
No claims have been itemized for this row yet.
Sources
| Source | Claim | Tier | Status | Quote |
|---|---|---|---|---|
| News report · 2018-08-29 techcrunch.com/2018/08/29/contraception-app-natural-cycles-facebook-ad-banned-for-being-misleading | whole row | Unassigned | confirmed | “not to state or imply that the app was a highly accurate method of contraception” Quote basis: not recorded. |
| News report · 2018-09-27 www.digitalhealth.net/2018/09/swedish-authorities-natural-cycles-app-assessment/ | whole row | Unassigned | confirmed | “This meant the MPA declared its assessment complete, with no further action required by the company.” Quote basis: not recorded. |
| Wikipedia (lead) · 2026-10-16 en.wikipedia.org/wiki/Natural_Cycles | whole row | Unassigned | confirmed | “Stockholm-based” Quote basis: not recorded. |
Source vault
Link status: Candidate - not yet fetched
| Document | Last fetch | |
|---|---|---|
| Privacy policy No URL recorded | Not fetched yet | NOT CONFIRMED |
| Terms of service No URL recorded | Not fetched yet | NOT CONFIRMED |
| Website https://www.naturalcycles.com | Not fetched yet | — |
| Primary source https://www.digitalhealth.net/2018/09/swedish-authorities-natural-cycles-app-assessment/ Verification: Unverified - heuristic first draft | Not fetched yet | — |
Enforcement
No enforcement actions are linked to this row.
State statute
No comprehensive state privacy statute on file for Sweden