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Daysy - your personal fertility tracker

Daysy gives you the choice!

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, use a barrier method to prevent pregnancy, or postpone PIV (penis-in-vagina) sex to avoid pregnancy. 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 is not a contraception. Daysy tells you when you are in your fertile window. During your fertile window you can choose to use a contraceptive, i.e. a barrier method like a condom.

 

Go to the Daysy shop!

 

As easy as 1, 2, 3...

Only 30-60 seconds per day!

Achieve a higher awareness of your body with Daysy: In just 3 steps and within 30-60 seconds a 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.

 

Discover Daysy!

 

"I would and already have recommend it, because I believe it is the best and healthiest way to know your body. :)"

Michèle, student.

"It is a useful tool that has helped my husband and I grow together with learning about my cycle, and I would highly recommend it as a better way to approach family planning, and is easy to use. "

Leda Wolk private chef

"Yes I would. I have already recommended to friends. Its amazing to be in control of your own fertility.
"

Aida Lombera

"I love knowing when I am fertile and when I am not. It is super easy to use. And when I am ready to plan a pregnancy the Daysy will help me with that. "

Natalie (attorney)
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290.00 EUR

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

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You can count on Daysy!

Why is Daysy so reliable? The fact that Daysy can determine your fertile days is due to the extensive database. Based on 5 million menstrual cycles and an algorithm that draws on knowledge from more than 30 years of research, including clinical studies, Daysy can give you reliable information about your menstrual cycle.

  • 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.

You can start with Daysy on any day of your cycle. Our customers appreciate the fact that measurement and fertility indicators can be seen independently of smartphone integration. Connecting to your smartphone is relevant for details and special features, e.g. if you want to display your menstrual cycle history or share it with your partner or doctor.

The algorithm of Daysy, which is also used by the well-known Lady-Comp fertility tracker of the sister company, has proven its safety for more than 3 decades. You will notice how exciting it is to get to know your body better with Daysy!

 

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Keep track of everything with the Daysy app.

Simply connect your Daysy to the app DaysyView to see all your menstrual data at a glance.

Once you have connected Daysy to the app, the fertility tracker will automatically synchronize your data with DaysyView.

DaysyView shows you your individual menstrual cycle calendar, your temperature curve and a prognosis for the coming days and weeks.

Via the app, you can also share your cycle details with your partner or doctor.

Discover DaysyView!

  • Check out your daily fertility.
  • Check your weekly fertility status.
  • View your colorful monthly calendar.
  • Take notes.
  • Look at your predicted menstrual cycle curve.
  • Look at your temperature curve.
  • Check your menstrual cycle statistics.
  • Partner app – share your menstrual cycle data with your partner.
  • Enter when you had sexual intercourse.
  • Receive notifications when your menstrual cycle changes.
  • Contact our expert team if you need advice and support.
  • Receive free cycle analyses.

Medical basics related to the female cycle

 

Every woman is different,

but there are some basic physiological facts about the woman's menstrual cycle that you should know:

  • As a rule, every woman has only one ovulation per cycle.
  • If two or more instances of ovulation occur, they take place within 24 hours.
  • After ovulation, the ovum can be fertilized within 18 hours at the most.
  • Sperm is able to move and fertilize in a woman's body for a maximum of 5 days.

This means that pregnancy can occur on only 6 days, i.e. 5 days before ovulation and on the day of ovulation itself. Daysy calculates these 6 days, plus provides buffer days.

 

How exactly does the Daysy work?

Daysy uses a morning measurement of your basal body temperature to detect ovulation in your cycle. Just measure the temperature under your tongue in the morning and you will know whether you are fertile or not.

Depending on the current cycle phase, the indicator lights red or green.

In addition, Daysy records your menstrual cycle history and DaysyView shows you your past and and present cycle data. It is hardly easier to become aware of your body.

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*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