Daysy is handheld medical device which tracks individual fertility and menstrual cycles. Daysy offers a hormone-free solution to managing your fertility, cycles, and health. By calculating and forecasting when you are fertile and when you are not. Daysy empowers you to make informed decisions around planning or preventing a pregnancy. A perfect gift of love to yourself, bringing awareness to your body, your hormones and your health.

Every morning, upon waking, you measure your basal body temperature under your tongue for just 60 seconds and enter menstruation if necessary. Daysy immediately analyzes your cycle data and shows you if you are fertile or not. Daysy does this by showing your fertility status using different colour displays.

Due to an intelligent algorithm based on scientific evidence, decades of experience, and well engineered technology, Daysy provides the highest quality, reliability, and precision in fertility tracking. Daysy calculates the infertile days with an accuracy of more than 99%. Daysy is German-made and Swiss designed, with the foundation of over 3 decades of pioneering research, innovation, and experience from a family-run company.

Switzerland-based Valley Electronics AG, creator of Daysy, is certified according to EN ISO 13485, meaning that our quality management is oriented toward the latest standards for medical products. All procedures at Valley Electronics AG are regularly subjected to internal and external overview. This allows us to continuously improve on and innovate our family of fertility trackers.

Valley Electronics AG is registered with the FDA and is required to comply with medical device regulations that are subject to regular inspections by the FDA in our Zurich office and suppliers. Furthermore, our quality management system is audited yearly by an independent European Notified Body.