Meet daysy – your personal fertility calculator.
Daysy lets you make the choice!
Daysy will show you if you are fertile or not with an accuracy of 99.3%. It is all natural and free of side effects.
As easy as 1,2,3...
Just 60 seconds once a day
- Every morning, take your temperature under your tongue.
- Confirm menstruation on the days you have it.
- Daysy evaluates your data and calculates your fertility status for the next 18 hours.
"I recommend Daysy to everyone. She and I are good friends. Switching to using Daysy instead of the pill or other hormonal birth control was the best decision I ever made. It helped eliminate the need for not only the pill, but it also helped reduce the postpartum depression I was suffering from, and allowed me to ween off my Zolft as well. Being in touch with my body is such a wonderful feeling and I feel much more in control of not only my fertility but also my life.
"I would absolutely recommend it. I love daysy and how easy it is to use, plus the tracking makes it simple to show my doctor how things are going. My husband and I are both very concerned about the effects of hormonal birth control, but don't want to throw caution to the wind. Daysy makes it easy for us to monitor fertility together, without all the side effects of HBC."Lauren Halcik, HR Director
"I have already recommended the product and two of my friends have bought Daysy! I love it! I personally dislike birth control pills. They make me.... well, not me. Other birth control methods I have heard first hand horror stories. That one story of each product makes it not worth the risk to me. This is extremely easy to do and extremely easy to remember to do. I use my cell phone as my alarm to wake up, and I keep Daysy on my night stand right next to my phone. I have been using it for the past 7 months and I love it!"-anonymous
"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, student
You can rely on daysy.
The fertility monitoring algorithm in daysy has been developed with feedback from millions of cycles and uses advanced statistical methods to calculate your fertility status.
Daysy's program relies on the Lady-Comp algorithm, which has a proven track record of over 28 years.
The fertility computer is programmed to accurately determine and display the time of ovulation in the female body by taking your daily basal body temperature.
- Red = fertile
Red days are when to plan for a baby.
- Red blinking = ovulation day
- Green = infertile
Green days will not lead to pregnancy.
- Yellow = learning phase/cycle fluctuations
Daysy needs to learn more about you. If preventing pregnancy, treat as red days.
Daysy has an App.
Simply connect your daysy fertility calculator to daysyView to see all your cycle data.
Once daysy is connected to her app, she will automatically start syncing data with daysyView.
daysyView lets you see your temperature data and fertility prognosis.
Share your data with your loved one, and let them know when it’s the “right” day.
- See your daily, weekly and montly status of fertility
- See your color - coded monthly calendar
- Make notes
- See your cycle forecast
- See your temperature curve and values
- See your fertility and cycle statistics
- Share your data with your loved one through daysyView Partner App
- Enter sexual intercourse
- Get notified when something changes in your cycle
- Contact our expert team for advice and support
- Get free cycle analysis