Literally the biggest waste of money on… Literally the biggest waste of money on the entire planet. Doesn't sync with your phone, takes forever to take your temperature and straight up doesn't work. I have reached out to customer support multiple times and they have told me to download beta versions of their app and all different types of solutions and nothing ever works. Absolutely garbage. Don't waste your money.

Can't revise menstruation data from >3 days prior Your product doesn't allow you to go back to revise menstruation data if it has been 3 days since the entry. This makes it extremely frustrating if you've already logged multiple months of data, and now have to do a factory reset in order for Daysy to accurately track your cycle. I have contacted Daysy about this issue, and have not been given any way to fix this issue without reseting the device and starting its tracking from day 1. I haven't found any cases online of other customers who have been able to resolve this issue either.

Not amazing I've had this for 3 months now and to be honest I still don't really see the fuss and regret paying $500 (aud) for it. Even when I take my recordings everyday, it still gives me the same information that my free flow app gives as far as when I'm fertile and when I'm not and flow was way more accurate about my period. Since the new update daysy has just become even more frustrating as the app doesn't record all data that has been taken and won't let you edit your period-whose period only goes for three days? I haven't got pregnant so i guess that counts for something but I would seriously caution anyone wanting to buy this, I think it is a bit of a rip off

Not easy to use Not easy to use. Not as insightful as I would have liked into my overall cycle health. Hard to know if it was worth it. Setting it up and troubleshooting the issues was not easy and can't say that I had a great customer service experience--not great return policies. I still think my Daysey is broken but now I'm stuck with it and no one there seems to care. Overall not happy with this purchase and think that the company could do better to with customer service, instructions on use, trouble shooting and warranty.

Careful If you are thinking in investing in this device you need to remember one important thing: Daysy is, in the end, just a fertility tracking method. It DOESN'T protect you from unwanted pregnancy (even though the company tries to sell it as if it would, in a very subtle way, and of course without taking any accountability). I got unwanted pregnant with it 2 times, now we switched on using condoms only religiously. I know from 2 other women in my friends circle who had the same "accident". So, please be careful. I still keep the device tho, in the case i will want a baby in the future, because it gives you a better overview of the best fertile days. Oh, one more thing: Beware of the paid reviews (that are in high amount on Trustpilot as well) ;)