Trackle

Its sensor system supports the symptothermal method by measuring overnight body temperature and combining those readings with information about cervical mucus entered in the app. After syncing the sensor each morning, users can view their current fertility status and identify fertile days.

The system is designed for people seeking a non-hormonal approach to contraception as well as those planning a pregnancy. trackle describes its product as a medically reviewed, scientifically grounded medical device and highlights its development in Germany. The brand also offers a companion app, onboarding support, educational courses and resources, including webinars, e-books and information about cycle health and natural family planning. Its website provides guidance for healthcare professionals and pharmacies, alongside FAQs and customer experiences. trackle reports that more than 100,000 users have used its system and publishes customer ratings and reviews.