Daysy
Your personal fertility tracker
-25%
promocode APRIL25
03/29 –
04/07

Daysy - your personal fertility tracker

Daysy is the hormone-free solution for managing your fertility, cycles, and health. Daysy calculates when you are fertile and when you are not. On your fertile days, it is possible for you to conceive; outside of your fertile window, it is not. Daysy supports you in empowered and informed decision-making.

Daysy displays your fertility status as a simple red (you are fertile / possibly fertile) or green (you are not fertile) light.

Daysy is a temperature based cycle tracker, German-made, Swiss-designed, with the foundation of over three decades of pioneering research, innovation, and experience from our family-run company.

Daysy cycle tracker distinguishes between non-fertile and fertile days with an accuracy of over 99%.

Daysy requires no subscription, the app is free. Daysy is FSA eligible. We offer flexible payment options.

 

Daysy is the hormone-free solution for managing your fertility, cycles, and health. Daysy calculates when you are fertile and when you are not. Daysy supports you in empowered and informed decision-making.

Daysy is German-made, Swiss-designed, with the foundation of over three decades of pioneering research, innovation, and experience from our family-run company.

Daysy distinguishes between non-fertile and fertile days with an accuracy of over 99%.

Daysy requires no subscription, the app is free. Daysy is FSA eligible. Daysy has flexible payment options.

 

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Daysy cycle tracker highlights:

  • Easy to use

  • No previous know-how needed

  • Free app and free partner app

  • Lifetime support

  • 2 years warranty

  • One time payment - no subscription

  • No hidden costs

  • Free shipping

As easy as 1, 2, 3 ...
Only about 60 seconds per day!
1
Every morning when you wake up, you measure your temperature under your tongue.
2
Enter if you have your menstruation.
3
Daysy evaluates your data and shows you if you are fertile or not.
What our customers say:
Daysy will tell you if you're fertile or not. For the past 3 years, due to my PMDD and Dysmenorrhea, I have started to learn EVERYTHING I can about the menstrual cycle and women's health, and this little machine sure has helped me in my ongoing endeavor to reclaiming control of my body and mental...
Helene
It helps me keep track of my period and when I may be ovulating.
Lauren
I highly recommend Daysy, it has to be one of the best investments. If something goes wrong customer service is there to help you and Daysy is easy to use. Also in the long run it'll save you money since you'll know your fertility.
Liliana
You can count on Daysy!
  • Red = fertile / possibly fertile
    On red days you can plan for a pregnancy.
  • Red flashing = predicted day of ovulation
  • Green = non-fertile days
    You are not fertile on green days.
  • Yellow = learning phase/cycle fluctuation
    On yellow days, Daysy becomes better acquainted with you.
  • Red, green, yellow = possible pregnancy

We are proud to have won one of the most renowned international design awards - the Red Dot Design Award 2019. The coveted seal of quality for exceptional design is awarded only to products that impress with their outstanding appearance and concept. The Red Dot Award, with over 18.000 submissions, is one of the largest design competitions in the world.

Keep track with the Daysy app
Discover DaysyDay!
Statistics & forecasts

Look at your predicted menstrual cycle calendar, temperature curve and menstrual cycle statistics.

Take notes

Track cervical mucus, intercourse, and your own notes about your cycle.

Contact our expert team

Easily reach out to our expert team if you need advice and support.

Medical basics related to the female cycle
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