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By Valley Electronics

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DaysyView is an App for tracking your menstrual cycle.

Implement your own temperature measurements and menstruation data, or simply connect daysy and automatically download your measurement data from your fertility monitor.

With daysy you are in control of your own fertility. Know when you are fertile and when you are not.

Daysy is the next generation fertility monitor, which tracks your daily fertility status by recording your basal body temperature and using a statistical model to track your cycle. With daysyView, you can download this data to take with you and view prognosis about your cycle in the coming weeks. Valley Electronics has a proven track record of 30 years in building high quality fertility monitors and family planning.

- Choose if you want to plan or prevent pregnancy
- View your daily or weekly status of fertility
- See your color-coded monthly calendar
- View the past and the predicted future fertility
- See your temperature curve over time
- Make notes
- Synchronize your temperature value via daysy fertility monitor or by entering it manually from a standard thermometer
- Share with your loved one
- Contact our expert team for advice and support

What's New in Version 1.4.0

- addition of French and Italian languages
- updates to date calculations
- update Ask an Expert local email addresses

iPhone Screenshots

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Customer Reviews

Three ⭐️ for the app, not the Daysy

The daysy is working wonderfully for me so far! I have been using it about 2 months and I will update my review after a few more months. But the app is not up to par with the daysy. Which is not the worst problem they could have! When I connect my daysy the app will alter the days I've enter, saying I didn't take my temp on days I know I did, or showing that tomorrow's data is available but today's temp wasn't taken (substituting today's temp for tomorrow and thereby "erasing" today's temp). It's a little glitchy and disappointing, sometimes makes me nervous that the daysy itself might not be working, but so far it's just the app giving me troubles.

Pretty good

The app does what it's supposed to do, but at a minimum. It would be great if this data could be shared with a doctor in an easy to read chart similar to the way it looks in the app rather than an excel file. It would also be nice if this data could be shared with the iPhone health data app or other health apps. This app only shows data in the app or an exported excel spreadsheet, which is very hard to read. If I want to compare my bbt with my sleep cycles, menstrual symptoms, etc. I have to flip between apps.


The DaysyView app has malfunctioned on me once or twice out of the full three months that I've had my Daysy. I haven't been experiencing anymore problems with the app recently. The Daysy experts are very helpful and try very hard to solve your problems or to answer any questions that you may have about Daysy or the DaysyView app.

View in iTunes
  • Free
  • Category: Medical
  • Updated:
  • Version: 1.4.0
  • Size: 8.6 MB
  • Languages: English, French, German, Italian, Polish
  • Seller:
Rated 12+ for the following:
  • Infrequent/Mild Sexual Content and Nudity
  • Infrequent/Mild Mature/Suggestive Themes
  • Infrequent/Mild Medical/Treatment Information

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
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