Fertility Tracker:
Accurately track ovulation and understand your body’s signals.
Track your cycle, know your fertile days, and understand when pregnancy is (and isn’t) possible. In under 60 seconds per day.
Daysy and Lady-Comp are fertility trackers by Valley Electronics. They measure your basal body temperature (BBT) and identify your fertile and non-fertile days. Teena is a cycle tracker that helps teenagers understand their cycle. Designed and made in Germany
since 1986.
Find out which device is right for you.
Your reproductive future.
In your hands.
Ditch the side effects and second-guessing.
Take ownership over your body, cycle, and health with a science-backed fertility monitor.
The family that pioneered fertility tracking, since 1986
In 1986, Dr. Hubertus Rechberg developed one of the first fertility trackers. Today his daughter leads the family business in its second generation.
One year ago I made one of the best decisions of my life by starting to use Daysy fertility tracker. I believe every woman should have the freedom to choose the method that best supports her lifestyle and her body. For me, the fertility awareness method has been the most empowering choice because it helps me understand my cycle, recognize my fertile window, and increase my chance of getting pregnant naturally.
I am truly grateful for this method. Being able to track my fertility and improve my chance of getting pregnant when the time is right has brought me confidence and peace of mind.
An incredible fertility monitor that tracks when you ovulate and provides accurate ovulation prediction to support your family planning goals, whatever they may be, backed by science. With just a small daily commitment of one to two minutes each morning, you receive insights that are truly life changing. You always know your ovulation date and when you are likely to be fertile.
Even more, understanding your chart of daily temperatures gives you valuable insight into your overall health, far beyond simple cycle tracking.
This fertility tracker is the best thing that has ever happened to my relationship. Before this, I tried several hormonal methods and they affected me badly, especially with my PCOS. I was moody, depressed and angry all the time, and dealing with irregular periods, irregular cycles and no typical 28 day cycle made everything even more overwhelming.
I am so grateful I found this product on YouTube and decided to try it. I have never looked back. It is absolutely worth the price and I would recommend it to anyone.
When are your fertile days?
99.4% accuracy, backed by 40 years of science
Daysy and Lady-Comp detect ovulation and show your fertile days in red and non-fertile days in green. Their self-learning algorithm is based on over 10 million cycles analyzed. Daysy determines the green (non-fertile) days with a scientifically confirmed accuracy of 99.4%.1
Sources
Your data is yours.
And yours alone.
Your privacy is extremely important to us. Your cycle data is stored on your device; the app only transmits it encrypted. We do not sell your data. Whether you share it with us, for example for a cycle analysis, is entirely your choice.