Can your phone prevent pregnancy? flo app trial recruits 3,800 women
Prevention
Recruiting now
This study is testing whether the Flo app, when used with an Apple Watch that measures wrist temperature overnight, can help women prevent pregnancy without hormones or devices. About 3,800 women in the US will use the app as their only birth control for up to 13 cycles. The app …
Phase: NA • Sponsor: Flo Health Inc. • Aim: Prevention
Last updated Jun 27, 2026 13:02 UTC