Daysy Reviews

94 percent would buy Daysy again

This survey of over 6000 Daysy users shows how they learned about Daysy, what convinced them to get Daysy and what factors they value most.

To everyone who participated in our survey, we say thank you! This year, we have once again launched a survey with Daysy users and are happy about the feedback we received from over 6000 users from a total of 40 countries. Our customer survey serves primarily as a basis for incorporating your wishes, as well as criticism, into future updates and products.

Almost 2,500 users from the English-speaking world took part in the survey: Most of the respondents were from the US  (43.6%), followed by the Netherlands (17.8%), and Israel (5.8%). Two thirds of the users (62.3%) are between 25 and 34 years old.



Exciting insights from the international community

Over 50% of participants have been using Daysy for more than one year. And 92% of all Daysy accounts remain active after one year.

83.9 percent of respondents use their Daysy daily, 12.3 percent at least 4-5 times a week (by the way: the more data Daysy has available the better for her calculations). The number of those who measure less than four times a week is very small at 3.8 percent - an indication that morning measurement can be easily integrated into everyday life, regardless of profession and lifestyle.

More than one third of the respondents (32.1%) found out about Daysy through friends. By the way, did you know that we have a program that allows you to recruit friends? You can find out more here: Refer a Friend program

95 percent said that the resources and information provided on Daysy helped them gain a solid understanding of the topic and the product, which is great to see - after all, it is our goal to provide you with as much useful information as possible about Daysy and the topic of fertility tracking so that you have a good basis for making a decision.

More information about the female cycle and many other interesting topics can be found at: Learn more

The majority of users (59.9%) made the decision to buy a Daysy together with their partner. The partner can be actively involved in the cycle monitoring at any time via the DaysyDay partner app by sharing the Daysy data with them. Of course, the same high level of data protection applies here as with the DaysyDay app.


Download DaysyDay Partner app for iOS

Download DaysyDay Parner app for Android


Over 94 percent of the users surveyed would buy Daysy again.

Three out of four women are very satisfied with Daysy: on a scale of 1 (disappointing) to 6 (very satisfied), over 70 percent of respondents rate their Daysy experience as a 5 (32.7%) or a 6 (41.1%).  Only 2.3 percent are not at least satisfied (3 or higher) with their Daysy.


The respondents' satisfaction with the experience of the DaysyDay app is similarly positive: here, the average satisfaction is 4.8


Users find the following features of the app the most helpful:

  • Calendar overview (69.8%)
  • Temperature curve (66.3%)
  • Prognosis (46.4%)

Intuitive, Useful, & Quality:

When asked what they associate with Daysy, 68.9 percent highlighted good investment, 62.5 percent think Daysy is easy to use, 52.8 percent praised its comprehensibility, and 42.2 percent praised the accuracy.


Customer service with a guarantee of success:

Over 93% of users who contacted customer service during their "Daysy career" were successfully helped with their request.


Customer service we are proud of:

On a scale of 1 (disappointing) to 6 (very satisfactory), over 83 percent of respondents rated their experience with Daysy as a 5 (19.9%) or a 6 (62.4%).  Only 0.1 percent were not at least satisfied (3) with customer service.