Daysy
Your personal fertility tracker

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

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 for the next 24 hours and shows you if you are fertile or not.
What our customers say:
Daysy is the best thing ever. I simply love and so will you.
Olivia Faria, Customer Representative.
I would definitely recommend this wonderful, easy and hormone-free 'tool' to anyone who would listen! (And I have :-D)
Teska Meulenberg - consular officer
Highly recommend Daysy because it is hormone-free, easy to use, and is backed up by awesome customer service.
Lisa, student
Add to Cart — 290.00 EUR

incl. VAT and Shipping Product available - Delivery time: 3-5 days*

You can count on Daysy!
  • Red = fertile
    On red days, you can plan for a baby.
  • Red flashing = day of ovulation
  • Green = out of your fertile window
    You are not fertile on green days.
  • Yellow = learning phase/cycle variations
    On yellow days, Daysy becomes better acquainted with you. If pregnancy is out of the question for you right now, consider these days as red and use a barrier method of your choice or postpone PIV (penis-in-vagina) sex.
Medical basics related to the female cycle
*Applies to deliveries to Germany. Delivery times to other European countries are extended by an additional maximum of 10 days. Countries outside Europe are not supplied. The deadline for the delivery begins with payment in advance on the day after the payment order has been issued to the transferring credit institution or in the case of other forms of payment the day after the contract is concluded and ends with the expiration of the last day of the deadline. If the last day of the deadline falls on a Sunday or a public holiday recognized by the State as a delivery place, the next working day shall be replaced by such day.
Accepted payment methods: Credit card, PayPal, advance payment
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