Period Tracker

Contains adsIn-app purchases
361K reviews
Content rating
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About this app

Period Tracker is the easiest way to track your periods!

* Press a button at the start of your period every month. Period Tracker logs your dates and calculates the average of your past 3 months' menstrual cycles to predict the start date of your next period.
* View your current and future period dates, ovulation and fertile days, your moods and your symptoms in a simple month-view calendar.
* Decorate your phone with an icon that looks great on your home screen and that's discreet. It reads simply "P Tracker."

* Take daily notes of moods, symptoms, and intimacy.
* Easily view the number of days until next period or number of days late.
* Know when you're fertile with flowers that show on your homescreen during your predicted ovulation and eight day "fertile window."

Please email comments and suggestions to

Disclaimer: Period Tracker period and fertility forecasts may not be accurate and should not be used to prevent unwanted pregnancy. To forecast ovulation Period Tracker calculates 14 days before the projected start date of one's next period. Forecast accuracy depends on a number of factors including how regular one's cycle length is, when one actually ovulates during the cycle, and how many periods have been logged in the app. Anxiety, stress, diet, nutrition, exercise, environment, medications, age and other factors can also affect one's cycle from month to month.

By downloading this app you agree to the End User License Agreement at .
Updated on
Apr 10, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App info and performance
This app may collect these data types
Personal info, Health and fitness and 4 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

352K reviews
Brittany Perritt
March 12, 2024
I've been using this (deluxe) app since 2013. I liked everything about it up until I had to re download on my new phone. Now they pester you about paying $9.99 monthly subscription and I can't find how to change the background which I loved doing the most. They shouldn't have changed it. It wasn't broken so it didn't need fixing. So for everyone that bought the deluxe version back then, to have extras do we get our money back since y'all decided to start charging people monthly subscriptions?
22 people found this review helpful
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A Google user
February 2, 2019
Great app! I have the basic one and it tracks very well. I wish it could have connected to my previous phone. I had to go back and add some information. The longer you track, the more accurate it becomes. I recommend this too anyone wanting to track not only their cycle, but also the symptoms as well. 2/2019 edit: they have upgraded and you can connect devices. great app.
4 people found this review helpful
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A Google user
July 11, 2019
Does what I need it to and does it fairly well, despite my body's fierce refusal to abide by any reliable schedule. On the flip side I have four years of data backed up and saved, so after losing two phones I still have a detailed history available to me to point to whenever anyone is like, 'what do you mean you don't get your period during the winter?' I dunno either, guys, but the data is there. Do have to say, sometimes it drops a period, but the restore from backup feature fixes that.
2 people found this review helpful
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What's new

Bug fixes