Daysy
Your personal fertility tracker
Now with Bluetooth®

Daysy is an intelligent fertility tracker that lets you get to know your very own menstrual cycle.

As easy as 1, 2, 3...
Only 30-60 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 for the next 24 hours.
What our customers say:
I would definitely recommend this wonderful, easy 'tool' to anyone who would listen! (And I have :-D)
Teska Meulenberg, consular officer
I would say that Daysy is one of the most fantastic purchases I have ever made! It has taught me to listen to my body and its natural cycle rather than changing it with unnatural methods. I would most definitely recommend this product to my best friend, in fact, I have!
Natalie
Daysy is so easy to use. What you get out of it is this wealth of information about your body. I now know the rhythms and the Health of my body, no guessing. I love Daysy and have told all my friends about it.
Mari, Teacher
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 = infertile 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 / pregnancy
Keep track with the Daysy app
Discover DaysyView!
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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