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# Software Apps for Contraception Placed into Class 2
- URL: https://www.fdaweb.com/software-apps-for-contraception-placed-into-class-2/
- Published: 2019-03-06T12:00:00.000Z
- Updated: 2026-09-15T01:10:24.000Z
- Author: David McFarland
- Tags: FDA Policy/General, #legacy-id-D5143545

*Federal Register* notice: FDA has classified software applications for contraception into Class 2 (special controls). The action is based on a 2017 Natural Cycles Nordic AB de novo classification request for the company’s Natural Cycles. Such products are identified as a device that provides user-specific fertility information for preventing a pregnancy. It includes an algorithm that performs analysis of patient-specific data (e.g., temperature, menstrual cycle dates) to distinguish between fertile and non-fertile days, then provides patient-specific recommendations related to contraception. To view the notice, click [here](https://www.govinfo.gov/content/pkg/FR-2019-03-06/pdf/2019-04028.pdf?ref=fdaweb.com).