MyDays X - The Original Period & Ovulation Calendar to track your Cycle Days

-- I love it — Really!
Congratulations! Out of 100,000+ apps, MyDays X has been selected by leading doctors as a top health app. Based on its medical accuracy, its utility in supporting health or healthy living goals, and usability, MyDays X has received the award from HealthTap AppRx Top Health and Medical Apps reports.

*** MyDays X predicts your fertile days and your next periods ***

• ""Intelligent Notifications"" based on your Location and Time
• Great Community Chat to share your Experience with other Users
• Pregnancy Mode
• Track more than 20 Symptoms and remember your Breast Self examination
• Optional manual entry of your Ovulation days and next period prediction
• Track when you had sex (how often, protected/unprotected)
• Keep an eye on your blood flow and mood.
• embedded eMail support for your cycle History to your doctor

• Backup/Restore via MyDays Cloud Backup, Email or WiFi

MyDays X - Period & Ovulation Calendar is the simplest way to track your female data.

• NuvaRing and any other birth Control based on Insert/Remove after x Days
• Partneremail, email your Partner how u felt in the last days and whats coming next
• Disable Daily Options, for example for kids or when you don't like to come pregnant

Simpler, Better, More Features and the best Community

• See the possible gender your baby may be
• Track your Cervix position, openness, firmness & feeling
• Track OPK Results (negative, fertile, peak/ovulation)
• Visualize Moon-phases

The new MyDays ROCKS! More innovative features than ever!

• Password Lock for your Security
• Add the actual cycle day to the calendar days
• Disable the predictions for period or ovulation on the calendar
• Filter what you like to see in your History List (eg. only Data from 2014)
• Multi User (track yourself, your daughter or close friend) 

• Create your own Calendar Themes! 

• Add text notes - remember if you took your pill
• Overwrite the predicted ovulation with your manual set day
• Adjustable Luteal phase
• Option to see old predictions 

• Reset preferences and data should you lost overview
• Rename Symptoms Fields for your Needs
• Get an overview by Chart for your temperature (BMT) and weight measures

• Choose the start day of the week
• Cycle and Period Length can be calculated automatically
• Unit Measures in Kg/Lbs/Stone Celsius/Fahrenheit 

• More than 20 Languages


MyDays, the easy tracking & prediction calendar for your period, ovulation and fertility.

MyDays does pinpoint the 'high fertile' days.
However, you can become pregnant also on other days! Usage is your own responsibility.
For more Help & Hint, see Preferences -> About -> Visit MyDays - Homepage

• It's FREE ! - without any hidden in-app purchases

* "MyDays X Free" includes advertising. Get "MyDays X Pro" without ads here:

What’s New

Version 3.248

Bug fixes

Ratings and Reviews

3.7 out of 5
397 Ratings

397 Ratings

Kitty21988 ,


I’ve had this app for a few years and it was my number app to log my periods and now I was using it to help track the best days to get pregnant. The problem I have is the amount of ads. Every time I click anywhere, an ad pops up. I exit the ad then click on something else and then another ad pops up. The ad makes it difficult I’m in a rush to log something and every time an ad pops up. I have now been using premom as well as flo to track my periods and bbt etc as they don’t have nearly as many ads and I can quickly log what I need to and move on. I will continue to use this for my periods since I’ve had it for so long I trust the timing more but I don’t use it for anything else and I would like to. But it takes too much time. The second you open the app an add pops up.

Developer Response ,

Sorry to hear! We have a paid ad-free version which also comes with many additional features.

jnicole9296 ,

Love it!

I love this app I have been using it for 3 years. I love that every time I transfer phones all the Data is easily transferable. It has an option for reminders to put in and remove your Nuva ring if you are into that. There is one 15 second add every time you open the app but they aren’t obnoxious just adds for puzzle/game apps and they can be skipped after a few seconds. Overall 5 stars I have loved this app it is very simple to use and has options for in-depth symptoms, tracking what days you have sex, the option to mark unprotected or protected sex, even a notes option to journal your mood. Useful if you are super thorough but also useful if you just track the start and stop days of your period like me and enjoy a reminder that your period is on the way soon.

Jen's Library ,

Best cycle app

Best cycle tracking/predicting app I've used. Very helpful for those of us who do not have regular cycles without using hormones/birth control. I have been logging my periods with this app since 2012. I continue to use it because of its accuracy in predicting my next period. It’s variable is only a max of 2-3 days. For me, that’s reason enough to keep using. I like how basic it is. I don’t need articles and push notifications everyday. I just need to log, track, and predict. Done. Yes, the addition of ads is super annoying. 30 seconds seems like an eternity to wait just make two-tap log, but I get it. If it bugs me bad enough, then ill just buy the upgrade. There are worse things in the world. 😁

Developer Response ,

Thank you for your great feedback! Please consider upgrading to our paid and ad-free version here: Thanks!

App Privacy

The developer, Christian Mueller, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location
  • User Content
  • Identifiers
  • Usage Data
  • Diagnostics

Data Linked to You

The following data may be collected and linked to your identity:

  • Health & Fitness
  • Location
  • Contact Info
  • User Content
  • Usage Data
  • Sensitive Info

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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