iPhone Screenshots


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

4.5 out of 5
3.6K Ratings

3.6K Ratings

PeanutsAndUnicorns_29 ,

I love it!! So accurate!!

I’m new to the world of having a period and most apps are really confusing and use words I would never be able to understand 😂 and they’re all fancy shmancy, and really confusing, whereas P.D is simple and so accurate!! It has been so accurate in when I’m due, and at first I was confused as to why it had symptoms and moods and all that there, but now it makes more sense and i know it wasn’t meant for what I am about to say but it’s almost also like a weight tracker somehow... and I can see what moods I’ve been having and my different range of symptoms! P.D is absolutely amazing and I recommend it to anyone new to this confusing and strange world of being on your period! 😃😃

TeganNicole ,

Life Changer.

I have never been able to keep track of my periods so easily. Knowing when I’m due well in advance was never a reality for me before getting this app.

My only con to this app is that I forget to enter the last day of my period on regular occasions and have to mentally backtrack. I wish there was a push notification or some kind of prompt on the day your period ends on average to ask if it’s over. It would improve my experience tenfold.

Thank you to the developers for creating something so handy!

Nefertiry75 ,

Don’t know what I’d do without it!!

This app is wonderful!! Whenever I get moody or emotional, and can’t explain it, I open this app, and sure enough, I’m a week away from my period. It really helps me keep track and prevent disasters lol
I love how I can document how I feel and keep track of my mood and body changes!
Helps you identify whether you are regular or irregular or if there any other changes. Also tells you when you’re fertile! 🙂
I have to say, it’s accurate the majority of the time!


ONI DANI d.o.o.
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

    Up to six family members will be able to use this app with Family Sharing enabled.

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