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Track your menstruation cycle, plan your activities and improve your quality of life! It’s never been easier!

Period Diary is a free menstruation cycle tracker, ovulation and PMS calendar and a general female health and fertility monitor!
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 1.4.6

Face ID support and bugfixes

Thank you for using the app!

Ratings and Reviews

4.7 out of 5
5.3K Ratings

5.3K Ratings

Akanki ,

Fix for recent crashing problem!

Rating this 5 star so that this review is on top and can help others to get their data. I understand the pain of losing periods info as I have been using this app from 6 years and now its just crashing. I asked the company or developers for fix or migrate us to their other app with all our data. But that didn’t happen so i found the solution myself. Hope it helps you guys too, to get your data back. Do try!

In your phone Settings > General > iPhone Storage search for P. D. Once you get the app then click on it, this will take you to storage statics of P. D. app. On this screen click on Offload App (blue color option on this screen). Once that done this same button will convert into Reinstall app and then click that. Get out of settings and open the newly installed app and you are all set with all your data intact.

Hope this works for all you guys out there 🤞🏻

Developer Response ,

Hi Akanki, thank you for your review! We appreciate the suggestions you have offered to other users as reinstalling the app is one of the steps to resolve the app issues and to get the latest version with the newest updates. However, we would strongly recommend reaching out to our team if you are having any issues with the app at support@bellabeat.com so they could investigate this further and confirm that your data is safely stored in your account so no further issues occur. All the best, Bellabeat

Lilpudd15 ,

So happy to have this app back

I had left a few months ago when the had changed the interface and it was not easy to read, I am so happy to have the previous interface back, it’s easy to understand, easy to read, easy to input info and just over all user friendly again!! I’m so glad to have it back!!! I love the calendar with the seperated boxes so I can actually tell what note goes to what day and so forth!! Thank you for being back the Original interface!!

Philote1 ,

Had to change the rating.

I’ve had this app for many years and not one did I have problems until recently. My app would not start and kept crashing. This occurred out of the blue. I powered down and restarted my phone. I performed a hard restart, and I even updated my phone’s software but the problem persist. I was loss so I contacted the developer. I was told to the the same things that I’d already performed. The developer stated if none of those things worked, then uninstall and re-install the app. I emailed back stating I was trying to avoid that because I didn’t want to lose years of data. Unfortunately, there had been no response. So, I did what the developer said and of course I lost all my data. The app works fine, loading and not glitching. I’m upset about this and will not be using this app in the future. I feel the developer could have had a better solution. I really did like the app.

App Privacy

The developer, Bellabeat, Inc., has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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

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