You are a journalist or editor and would like to write about Daysy, Femtech or about women's health in general? 

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Recent Press Releases

Media Contact

Malin Graumann


Company description

Valley Electronics is an innovative, reliable and woman-led family company. With competence and experience in the field of fertility tracking, it is committed to reliable and science-based natural fertility management. Since 1986, Valley Electronics has been a pioneer in the field of “fertility tracking” and has since expanded its experience and research in monitoring the female cycle and combined it with the possibilities of technological progress. High product reliability and user satisfaction have always been the driving forces. The company can therefore look back on a unique long-term and positive experience in a market that has only recently become very dynamic.

Natalie Rechberg-Egly

Natalie Rechberg-Egly is FemTech Entrepreneur, Founder of Daysy, and CEO of Valley Electronics AG.

Product description

As a medical device and lifestyle fertility tracker, Daysy allows women with the desire for a health-conscious lifestyle to monitor their individual menstrual cycle and determine their fertile and infertile phases in natural harmony with their body. Daysy is a reliable and scientifically supported method allowing women to accurately differentiate their fertile phases from infertile phases based on a sensitive basal body temperature measurement. Through an intelligent algorithm based on scientific studies and knowledge, years of experience, and sophisticated technology, Daysy offers the highest quality, reliability, and precision for fertility tracking. As a direct result, Daysy is trusted and recommended by its users. Daysy was developed as a medical device, is registered accordingly, and is continuously monitored by a certified quality management system. Daysy is to be used to facilitate conception and track the menstrual cycle. Daysy is not a replacement for contraception.


Daysy is a fertility awareness-based method (FABM) of family planning. FABM are the most natural way for women to learn about their own individual menstrual cycle and to find out when they are fertile. All FABM are based on precise calculations of fertile and infertile days in the menstrual cycle with reference to natural physiological indicators. The rise in popularity of FABM are a response to women’s growing need to make their own decisions about their bodies, to avoid unbalancing their hormone levels, and to regain a feel for and trust in the signals their bodies are providing.

Daysy Images

DaysyDay Images

Copyright: Valley Electronics AG / Daysy

Daysy Logo

Copyright: Valley Electronics AG / Daysy

Daysy Links


Instagram: @daysyfertilitytracker

Facebook: /daysy.fertility.monitor