Period Tracker

Contains adsIn-app purchases
360K 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
Sep 19, 2022

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
360K reviews
Angela Sandoval
January 3, 2023
I am a paid premium subscriber and I can't access all of the content I'm supposed to have with that subscription. There is one particular article that is the whole reason I purchased the premium subscription and for 7 months of that subscription haven't been able to get to it. It's very frusterating! I've used this app for 10 years I really wish it would work for me the way it's supposed to now that I've upgraded!
9 people found this review helpful
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laura s
December 4, 2020
Overall very pleased with this app.. probably best one I have found and used. Only hiccup I find is that sometimes I enter notes and they don't get saved to the screen. They just disappear. I would suggest the app developer create a save button on the actual notes page or something. Also, I haven't been able to backup anything.. and can't figure that out, but that might just be a malfunction on my part. Haha!
36 people found this review helpful
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January 2, 2022
One MAJOR problem. I have been using this app for years, through multiple phones and service providers with no functionality issues. Simple and easy to use. Now, as I age, the fact that this app automatically inputs a cycle for you, whether you have one or not, makes the app useless to me and every other person trying to track missed or skipped periods. There seems to be no way to turn off this nice, but completely pointless, feature.
66 people found this review helpful
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What's new

Bug fixes.