Product description

Daysy is your trusted companion for natural family planning.

In just 60 seconds, it measures your basal body temperature and, using a smart algorithm combined with your personal cycle data, clearly shows whether you’re fertile or not, with 99.4% accuracy.

No manual calculations or extra apps needed, Daysy offers an innovative take on ovulation tracking.

Invest in a long-term solution that guides you safely and confidently through your cycle.

It is your personal cycle computer and combines a sensitive sensor with a smart algorithm.

Precisely know your fertile days and confidently tell when pregnancy is possible and when it’s not.

With quick daily measurements, your fertility status is displayed directly on the device.

Get accurate predictions of your cycle calendar and analyze your temperature curve with ease.

Take your fertility into your own hands.

Precision & Reliability

Backed by 40 years of research, Daysy distinguishes your fertile and non-fertile days with 99.4% accuracy.

Effortless use

In just 60 seconds, you’ll know your fertility status. No manual calculations or extra apps needed. Daysy gives you clear, reliable results.

Intelligent algorithm

Using your individual measurement data, the algorithm performs advanced analyses to reliably identify your fertile days.

Long-term investment

Daysy is an investment in your health. A reliable solution for fertility planning with no extra costs or subscriptions.

Every morning after waking up, measure your temperature under your tongue for 60 seconds with Daysy.

If you’re on your period, simply confirm it with a quick click on the device.

Daysy uses a color-coded system to show your fertile and non-fertile days directly on the device.

You can sync your basal temperature and period data to the app. No subscription needed.

Use the app to follow your temperature curve and see predictions for future cycles.

Is Daysy reliable and safe?

Yes, Daysy is a medical device with an accuracy of 99,4%

How soon can I trust Daysy's results?

You can trust Daysy's results starting directly from day one.

Who can use Daysy?

Daysy is for anyone who menstruates, whether you work shifts, are a mom, want to conceive, wish to prevent pregnancy, or are dealing with cycle-related issues like PCOS or endometriosis.

How long does the temperature measurement take?

The measurement takes just about 60 seconds a day. Simply take your basal temperature each morning after waking up to monitor your cycle.

Do I always have to measure my basal temperature at the same time?

No. What’s important is that you’ve rested for at least one hour and take your temperature immediately after waking, before getting up or moving around.

From the brand

Our mission is to offer you a simple, accurate, and natural approach to family planning and to help you understand your menstrual health.

For over 40 years, we’ve been at the forefront of innovation and precision, empowering women, teens, and menstruating individuals worldwide to make informed, confident decisions about their health and future.

Are you trying to conceive? Planning a pregnancy or postponing it? We are always by your side

With cycle tracking, you gain a deep understanding of your body, take control of your fertility, and support your overall well-being, precisely, simply, and efficiently.

Backed by 40 years of research, our advanced menstrual cycle computers offer 99.4% accuracy in distinguishing between fertile and non-fertile days.

We believe every woman deserves to understand her body. That’s why we create science-backed, intuitive solutions that put your health and autonomy first.