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    • Daysy - Your personal fertility tracker (incl. free app DaysyDay)
    • Daysy - Your personal fertility tracker (incl. free app DaysyDay)
    • Daysy
    • Daysy - Your personal fertility tracker (incl. free app DaysyDay)
    • Daysy - Your personal fertility tracker (incl. free app DaysyDay)
    • Womand recording BBT
    • Daysy - Your personal fertility tracker (incl. free app DaysyDay)
    • Daysy
    • Daysy - Your personal fertility tracker (incl. free app DaysyDay)
    • Daysy - Your personal fertility tracker (incl. free app DaysyDay)
    • Womand recording BBT
    16 reviews

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


    Regular price $499.00
    $499.00 -17%
    Sale price
    Regular price
    $605.00
    Unit price
    Sale Sold out

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    Description

    Know your fertile days naturally. No hormones, no guesswork, no subscription.

    Every morning, measure your basal body temperature in just 60 seconds. Daysy instantly tells you whether you're fertile or not, with over 99% accuracy, clinically proven over 40 years of research.

    🔴 Red = fertile or possibly fertile
    🟡 Yellow = fluctuating, possibly fertile
    🟢 Green = not fertile

    Is Daysy right for me?

    Daysy is for you if you want to:

    • Conceive and want to know your fertile window precisely
    • Understand your cycle and body on a deeper level
    • Ditch the pill and find a long-term, natural alternative

    Common questions, answered

    Is it really accurate if my cycle is irregular?

    Yes. Daysy's algorithm learns your unique cycle over time, including irregular patterns.

    What if I forget to measure one morning?

    Daysy handles occasional missed measurements.

    Is this a subscription?

    No. Daysy is a one-time purchase. The DaysyDay app is free, with no ongoing fees or hidden costs.

    What if I have trouble syncing Daysy?

    If you experience issues syncing Daysy with the DaysyDay app, contact us. We offer ongoing and free support to our customers with syncing issues.

    How should I care for Daysy's battery?

    Follow the supplied instructions for charging and caring for your Daysy. If your device needs servicing, we can help. See our service fee page for the applicable service fee.

    Is Daysy suitable for shift workers?

    Yes. Just measure when you wake up after roughly 4 hours of sleep. Make sure you have slept continuously for at least the final hour immediately before measuring.

    How long does it take for Daysy to know your unique cycle rhythm?

    2-3 cycles.

    Is Daysy just a thermometer?

    No. With a basic basal thermometer, you measure your temperature and interpret the pattern yourself. Daysy measures your basal body temperature with a very precise sensor and uses your measurements and cycle history to calculate your fertility. You take the measurement; Daysy does the rest for you without you having to chart and interpret temperature changes by hand.

    Have more questions? Visit our Daysy and Lady-Comp FAQ page for detailed answers.

    What's included

    • Daysy fertility tracker
    • Free DaysyDay app (cycle calendar, temperature curve, fertility forecast, partner sharing)
    • Protective travel case
    • Micro USB charging cable
    • Quick guide and user manual

    Why thousands of women trust Daysy

    • 99.4% accuracy, clinically validated (EMA and FDA approved)
    • Science-based algorithm with 40+ years of research and development
    • Hormone-free and non-invasive
    • Made in Germany by a family-owned company
    • Lifetime expert support by phone and email
    • 2-year warranty
    • Free shipping across Australia
    • ZIP payment plan available

    99% of Daysy users would recommend it to a friend.

    "I stopped taking the pill after 13 years and Daysy was the best thing to help me learn how to tune into the natural rhythm of my cycle. I wanted something really accurate, especially because I wasn't ready to have a baby yet." —K. Daysy customer

    Not sure whether Daysy or Lady-Comp is the better fit for you? Read our guide: Daysy or Lady-comp: which should you choose?


    Delivery and return policy

    Our team will ship your order within 5 business days. The time it takes to receive your order depends on the shipping method chosen at checkout. 

    Please be mindful when selecting personal care and intimate products, as all sales of these items are final. Due to hygiene concerns, we cannot offer refunds, exchanges, or returns on sanitary products (such as menstrual cups and discs, pads, period underwear, and sterilisers).

    Daysy - Your personal fertility tracker (incl. free app DaysyDay)
    Daysy - Your personal fertility tracker (incl. free app DaysyDay)
    Regular price $499.00
    $499.00 -17%
    Sale price
    Regular price
    $605.00
    Unit price

    Customer Reviews

    Based on 16 reviews
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    100.0
    A
    Anonymous

    I absolutely love my Daysy! It has become such an extension of myself, so deeply interwoven into my self-care and daily routine that being without it feels like forgetting to brush my teeth or leaving the house without underwear. Something just doesn't feel quite right!

    I've always been a naturalist at heart and have never felt comfortable with the idea of using contraception that interferes with my body's natural cycle. I've also never particularly liked condoms, as I feel they create a physical barrier to the skin-to-skin connection that, for me, is such an important part of genuine intimacy. They tend to dull the experience, which I've always found somewhat ironic given that intimacy is all about feeling and connection.

    Having experienced three abortions when I was younger, I also developed a very real fear of sex because of the possibility of another unwanted pregnancy. So when I first discovered Daysy, I absolutely loved the concept, but naturally, I was sceptical about whether I could truly trust it.

    Fast-forward more than 10 years, and I can confidently say that Daysy has completely transformed my relationship with my body, my cycle and intimacy.

    Throughout those years, I've had a regular, active sex life and have followed Daysy's instructions and precautions religiously. Despite considering myself highly fertile, I haven't experienced a single unwanted pregnancy during that time. My personal experience has given me an enormous amount of confidence and trust in this little device.

    Of course, Daysy isn't a contraceptive in itself, and that's an important distinction. During fertile days, you still need to use protection or abstain from intercourse if you're avoiding pregnancy. However, what I love is the freedom and peace of mind it gives me during the other days of my cycle. Being able to understand my fertility patterns and make informed decisions without interfering with my body's natural processes has been incredibly empowering.

    The physical device itself is also beautifully made, durable and reliable. Mine has lasted several years without any issues. I did unfortunately have to replace one after accidentally spilling water on it, so perhaps a waterproof design would be a wonderful addition in the future! But that's really just a bonus rather than a criticism.

    And now, what truly elevates Daysy from a wonderful product to an exceptional experience is its customer service.

    I can genuinely say that Daysy has, by far, the best customer service I've ever encountered from any company. The team is incredibly compassionate, caring, attentive and genuinely helpful. They respond to enquiries promptly and go above and beyond to make you feel supported.

    What I particularly appreciate is that their care doesn't seem to end once they've made a sale. Whether your device is under warranty or not, you never feel forgotten or left to navigate things alone. There's a genuine sense that they're there alongside you throughout your entire Daysy journey, ready to help whenever you need them.

    In a world where customer service can often feel impersonal and transactional, Daysy is a refreshing exception. Their kindness and dedication are something I value enormously, and quite frankly, I would continue supporting this company for its customer service alone!

    After more than a decade, Daysy is so much more to me than a fertility tracker. It's a tool that has helped me reconnect with my body's natural rhythms, develop a deeper understanding of my fertility and reclaim a sense of confidence and freedom around intimacy that I once thought I'd lost.

    I love the philosophy behind this product, I love the device itself, and I have tremendous respect for the people behind it.

    Thank you, Daysy, for creating something that has become such a meaningful part of my life, and for backing it with such genuine care and integrity.

    More than 10 years later, I'm still an incredibly happy and loyal customer. I couldn't imagine my life without it! ❤️

    A
    Anonymous

    Fantastic service from the staff at period Wisdom Boutique. I was helped by Lucia to have my broken Daysy replaced. Extremely kind and warm. She genuinely cared to help so that I could start using Daysy to track my fertility again. Very patient and even checked back with me after not hearing from me to see if I was still interested in the offer of swapping my broken Daysy over with their functioning Daysy.

    Fantastic product. Teaching me to read my body cues off fertility instead of pumping my body with unnatural hormones to avoid pregnancy. Highly recommend.

    M
    Michelle

    Easy ordering process, excellent customer service and a well-designed product. Highly recommended.

    A
    Anonymous

    I’ve been using Daysy for the past 5 years, and it has been an incredible support throughout my fertility journey. It’s given me confidence and clarity in understanding my cycle, which has made such a difference.
    I recently had my device serviced, and I was genuinely impressed by how smooth and easy the entire process was. The team was incredibly supportive, responsive, and helpful every step of the way.

    G
    Guio

    I have been using Daysey for 2 years now. It has been a really simple and effective system and the way it uses bluetooth to hook up to your phone app makes everything so easy. The red/green/yellow lights are easy to follow and havent let me down! The customer support team was also incredibly helpful and honoured the warranty when I was having issues with my Daysey. Would recommend if you're wanting a natural solution to contraception.

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    As a business, we reside and work on Turrbal and Yuggera country, Brisbane , Australia. We acknowledge the traditional owners of this land and we pay our respects to the elders past, present and emerging.

    DISCLAIMER

    The information provided on this website, including all resources and materials is for general educational purposes only. It does not constitute medical advice, diagnosis, or treatment. 

    Always consult a qualified healthcare provider regarding your individual health, fertility, or medical circumstances.

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