Visit your local partner at


CHF 420.00
Includes: +
  • Fertility tracker Daysy (incl. battery)
  • Connection cable for your smartphone
  • Instructions for use

Discover your menstrual cycle – and your fertility!

Daysy is a fertility tracker that uses the fertility awareness method by learning and tracking your menstrual cycle. 

Daysy tells you when you are in your fertile window and when not. During your fertile window you can choose to plan a pregnancy, during your infertile phase you can not. It's your choice.

Daysy calculates your fertile window: Your fertility status will be displayed either as a red (you are fertile) or green (you are not fertile) light.

Daysy tells you when you are in your fertile window and when not. Daysy is not a contraception.

This is how Daysy works:

Daysy can easily calculate your fertility based on your morning basal temperature, using a unique algorithm. All you have to do is to place Daysy’s measuring tip under your tongue every morning before getting up and wait until a beep signals the end of the measurement. The measurement will take only 30 to 60 seconds!

On some days, you will be asked to confirm if you have your period. This too works very conveniently at the touch of a button. Right afterwards, Daysy will show you the result.

That's all you need to do in order to know at any given time if you are fertile within the next 24 hours or not. Daysy’s fertility display is also easy to understand: red means you are currently fertile, green means you are not fertile on the respective day.

Daysy calculates your fertility

Daysy makes it easy for you to use contraception when you need it: Daysy is simple, fast, and safe. Its time-saving handling makes it simple to integrate Daysy into your everyday life. Daysy is also suitable for women working shifts. The only thing you need to make sure is to sleep soundly for about four hours before the measurement.

Daysy has a free app: DaysyView

Combine Daysy with the free app DaysyView to make your natural family planning with Daysy even more convenient. DaysyView shows you your fertile and infertile phases in a fertility calendar as well as a practical preview function. This way you can plan in advance when it's the right time for being intimate with your partner.

From now on, you can enjoy the advantages of a self-determined life without synthetic hormones!


CHF 420.00

Daysy is a fertility tracker that uses the fertility awareness method by learning and tracking your menstrual cycle.


(( MASK ))