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Period Diary is a unique, fully animated and the most complete period and ovulation tracker. This sophisticated and unique product makes your everyday life easier, and it is incredibly simple to use.
Whether you need help planning your pregnancy, or want to avoid missing taking the pill, we’ve got you covered! Join many satisfied women who have made their lives simpler by tracking your symptoms, planning your activities and taking control of your life!

- Track your period, ovulation, fertility, notes, symptoms, moods, weight and more
- Automatic prediction of your period, ovulation, fertility (excellent for activity planning)
- A display of all your symptoms and notes on the calendar
- Pregnancy Mode
- Passcode protection
- Discreet icon name “P.D.”
- 3 completely integrated application skins
- Social Forum (connect with women around the globe)
- Excellent user support
- Charts
- Over 30 symptoms
- Over 20 moods
- Sync with Calendar
- Period notifications
- Fertile notifications
- E-mailing your data (Export)
- Unlimited notes and more...

-Period Diary relies on two scientifically proven formulas to deliver you the most accurate predictions for your cycle!
-Free from any hidden in-app purchases or ads

Period Diary is easy to use, once you download it you will start to wonder how you were able to live without this amazing health app all this time! Its elegant interface and numerous features are the answer to all of your female health-related problems. If you feel lost and want to know more about your health, you can find out more about your symptoms. You can even connect with other women on the Social Forum and discuss your issues. And if you have any problems with the app, our excellent user support is always here to help!

What’s New

Version 3.6

- App improvements
- Bugfixes

Ratings and Reviews

4.6 out of 5
13.1K Ratings

13.1K Ratings

Ktfuchs ,

All-Around Great Tracker

I downloaded Period Diary about 4 years after I got my Mirena IUD. For those first few blissful years, I had no period whatsoever and life was grand. When it came back, I started tracking so that I could know when I needed to have pads and tampons on hand. As I logged more information, the tracker became more accurate and I was able to better estimate my cycle length and ovulation by pairing the app’s predictions with my physiological observations. It also comes in handy when at the gynecologist’s office and I’m asked for the date of my last menstrual period.

I am not at the point of trying to conceive, but I imagine Period Tracker becomes even more useful in that scenario. Logging my period makes even that less than fun time of month a little brighter. The app is very easy to use and good at what it does. I’ll continue to use it for as long as I have a period!

Adaroooooood ,

Erased data

UPDATE: time zones affect the data on your calendar so heads up if you’re going on vacation and see that your data’s been erased?!?! The team responded to my email and once arriving home, my data was recovered.
I’ve been using this app for over two years and have grown from just logging my periods. I would log my intimate dates and end up using this as a legitimate diary to log about my days. I traveled today and when I opened my app to show a friend something, all my logs were erased with the exception of one I wrote two days ago. Alongside all the days I was intimate have been eradicated and it’s frustrating to lose all this data. For two years I’ve written down dreams and much more and would rate this 5 stars if I could get my data back😕😕😕.

Creat nicknamev ,

A few bugs.

First off before I criticize this app I must say it is still an app on my phone and I use it and it is very handy and is the best period tracker I've used. Now there is one bug. When I start my period the app sill says I'm late. And everyday of my period I have to manually click on each and everyday I'm on it, and it keeps saying can not change can not change, or it will delete my Previous day of starting my period, or it will think I started my period everytime. It does not manually count I have to click each and everyday from start to end my period, or it will say my period lasted 1 day. So I kinda have to fight with it to get my start to end date correct. It just a little bug. Idk how to fix it. Or if it is indeed supposed to do that. Other than that I love the app and a little fighting is worth keeping it on my phone.


Bellabeat, Inc.
100.5 MB
Health & Fitness

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


English, Croatian, Dutch, French, German, Italian, Japanese, Portuguese, Spanish

Age Rating
Rated 9+ for the following:
Infrequent/Mild Mature/Suggestive Themes
© Nanobit Ltd.


  • Family Sharing

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

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