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.

Absolutely love my Daysy Absolutely love my Daysy! I've contacted support twice now, once for a cycle question and, more recently, about a connection problem and both times the support was quick and efficient! Highly recommend getting a Daysy or Teena to help you understand your cycle better.

When Daysy did an app update they… When Daysy did an app update they didn’t notify any of their customers that they would no longer be able to edit their mensuration period. This meant for me that my cycle was thrown off which took months to get back on track. I have seen a lot of articles that state their research is not accurate and I have lost my trust in them.

I love Daysy! The Daysy is amazing! I love it. I used the previous generation product, called LadyComp, preventing pregnancy for about 5 years. Once we decided to try, I got pregnant the very first cycle since I knew exactly when I ovulated. The Daysy is even easier than that and I'm so grateful for a natural alternative to hormonal birth control.

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.