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Daysy - Your personal fertility tracker (incl. free app DaysyDay)

Daysy - Your personal fertility tracker (incl. free app DaysyDay)

Regular price $550.00 AUD
Regular price Sale price $550.00 AUD
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Discover your menstrual cycle – and your fertility!

Daysy empowers you to understand your menstrual cycle. Daysy distinguishes between non-fertile and fertile days with an accuracy of over 99%.

Your Daysy Fertility Tracker:

  • Easy to use
  • No previous know-how needed
  • Free app and free partner app
  • Lifetime support
  • 2 years warranty
  • One time payment - no subscription (ZIP payment plan available)
  • No hidden costs
  • Free shipping

What Daysy is:

Daysy is a revolutionary fertility tracker that puts you in control of your reproductive health. This intelligent device learns your unique menstrual cycle and provides 99.4% accurate fertility predictions without hormones or invasive procedures. Daysy allows every woman who wants a health-conscious lifestyle to monitor her individual monthly cycle and determine her fertile and non-fertile days in natural harmony with her body.

What Daysy does:

Daysy is an accurate and science-based method which allows you to easily, reliably, and precisely differentiate between your fertile and non-fertile phases, based on the precise measurement of your basal body temperature. 

How to use Daysy:

Every morning, upon waking, you measure your basal body temperature under your tongue for just 60 seconds and enter menstruation if necessary. Daysy immediately analyzes your cycle data and shows you if you are in your fertile window or not.

Why you can rely on Daysy:

Due to an intelligent algorithm based on scientific evidence, decades of experience, and well-engineered technology, Daysy provides the highest quality, reliability, and precision in fertility tracking. 

How Daysy informs you:

Daysy shows you your fertility status as either a red or a green light. This way, you always know when you are in your fertile window and when you are not. This technology-based temperature method, used by Daysy, is one of the most reliable methods in the world for fertility tracking.

Daysy has her own app:

DaysyView app

The DaysyDay app makes Daysy compatible with smartphones and thus offers new options for digitally expanding your knowledge of your unique menstrual cycle and body. DaysyDay also gives you the ability to share your information with your partner, doctor, or our expert team.

In addition to displaying your individual cycle calendar and temperature curve, DaysyDay shows you a range of statistics about your menstrual cycle. You will see a prognosis for your fertility status over the coming weeks so you can plan ahead.

This is what has convinced thousands of Daysy users:

  • Distinguishes fertile from non-fertile days with over 99% accuracy
  • Developed by medical professionals
  • Experts who are also available by phone and email to answer your questions
  • Family-owned company with over 40 years of experience in fertility tracking
  • Made in Germany
  • 99% of our current Daysy users would recommend Daysy to a friend

 Daysy highlights:

  • Daysy is perfectly simple and straightforward.
    Take your basal body temperature in just about 60 seconds, enter menstruation when necessary, and Daysy will indicate the days when you’re fertile and the days when you’re not.
  • Daysy is reliable and precise.
    With well-engineered technology and an intelligent algorithm, Daysy guarantees top quality and reliability – in a completely natural way. Be in touch with your body.
  • Daysy has its own app.
    With "DaysyDay," you can view the details of your cycle and can share these with your partner, doctor, and our team of experts.Daysy_Case_Box_whitebackground_shadow.png

Device Specifications

  • Size: 13 x 4.8 x 2.2 cm (H x W x D)
  • Weight: 38 g (1.34 Ounces)
  • Battery: Built-in, rechargeable battery
  • USB Port: USB 2 Micro-B
  • WEEE-Reg.-Nr.: DE34917049
  • Packaging

Daysy comes with a protective case, making it ideal for travel.

The outer packaging of Daysy is made from recycled material.

Includes a quick guide, user manual, and micro USB cable.

#LoveYourBody - Daysy is all natural and empowers you to live in harmony with your body.

Key Benefits:

  • 99.4% Accuracy - Clinically proven fertility tracking
  • Hormone-Free - Natural cycle monitoring without side effects
  • Easy to Use - Just 60 seconds each morning
  • Personalised Learning - Adapts to your unique cycle patterns
  • Comprehensive free App - Track symptoms, moods, and cycle insights

Perfect For:

  • Women trying to conceive
  • Those seeking a natural way to manager their fertility
  • Any woman wanting to understand their cycle better
  • Couples planning their family journey

Experience the freedom of knowing your body's natural rhythm with Daysy - trusted by women worldwide for over a decade.

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Customer Reviews

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A
Anonymous
Love the Daysy

I’ve been using daysy for a few months now and I love it! Easy to use, the app is great and not complicated at all. I love that I can see my temp fluctuations and record other body signs of ovulation to help confirm. I have used wearable devices before which were great that they monitor temps throughout the night vs needing to get your temp straight away upon waking. That would be the only “downside” is if you wake up early morning, not a take your temp then also not falling back sleep, you miss the window for an accurate reading. With the wearable device you have more room to manually figure out ovulation by using fertility tracking methods and manually dot your cover line and peak. The daysy app does that for you, it isn’t as in detail as other temp devices out there but if you want simplicity and something that is easy to read it’s a definite purchase!

Many thanks for your review, Daniella!

D
Daniella
daysy

I’ve been using daysy for a few months now and I love it! Easy to use, the app is great and not complicated at all. I love that I can see my temp fluctuations and record other body signs of ovulation to help confirm. I have used wearable devices before which were great that they monitor temps throughout the night vs needing to get your temp straight away upon waking. That would be the only “downside” is if you wake up early morning, not a take your temp then also not falling back sleep, you miss the window for an accurate reading. With the wearable device you have more room to manually figure out ovulation by using fertility tracking methods and manually dot your cover line and peak. The daysy app does that for you, it isn’t as in detail as other temp devices out there but if you want simplicity and something that is easy to read it’s a definite purchase!

2025-09-15 08:45:46

A
Anonymous
Worth it for ease of use and peace of mind

I stopped taking the pill after 13 years and the Daysy was the BEST thing to help me learn how to tune into the natural rhythm of my cycle. I wanted something that was really accurate for taking my temperature, especially because I wasn't ready to have a baby yet. I love that it's easy to use, it syncs to my phone and I just have to follow the light code on the device. I wish more doctors would offer the Daysy an alternative for women who are looking to avoid hormonal contraception. I wouldn't have been confident to do the Fertility Awareness Method on my own without the Daysy.

Thank you so much for sharing your experience, Kate!

K
Kate
daysy

I stopped taking the pill after 13 years and the Daysy was the BEST thing to help me learn how to tune into the natural rhythm of my cycle. I wanted something that was really accurate for taking my temperature, especially because I wasn't ready to have a baby yet. I love that it's easy to use, it syncs to my phone and I just have to follow the light code on the device. I wish more doctors would offer the Daysy an alternative for women who are looking to avoid hormonal contraception. I wouldn't have been confident to do the Fertility Awareness Method on my own without the Daysy.

2025-09-15 08:47:17

A
Anonymous
Excited to use!

Thank you Period Wisdom Boutique for being so kind and communicating back and fourth so quickly. I was so excited to see you stocking Daysy and I am so excited to use her! Wonderful customer service. Recommended to all my family and friends 🤗