Overview
- The partnership is live and eligible WHOOP MG and WHOOP 5.0 devices can automatically transfer body-temperature measurements to the Natural Cycles app.
- Whoop is offering new Natural Cycles users a complimentary 12-month subscription to encourage adoption of the integrated tracking.
- Natural Cycles uses daily basal-body-temperature data to estimate fertile windows and supports modes for postpartum and perimenopause tracking, eliminating the need for manual daily temperature entry.
- Both companies frame the move as clinically grounded and say they comply with U.S. and EU privacy rules, with Natural Cycles noting its FDA clearance and a policy that it will not sell user data.
- The integration expands Whoop’s focus from performance metrics into everyday reproductive health by streamlining fertility tracking, and it could change how people manage non-hormonal birth control while prompting attention to data use and oversight.