Period Tracker, the easiest way to track your health!

*Now supports HealthKit, 3DTouch, TouchID, portrait charts, Advanced TTC Mode (the easiest way to get pregnant by following the homepage timeline’s simple prompted instructions!), and Pregnancy Mode with articles and week-by-week images.

Period Tracker is SIMPLE and CUTE.
* 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, moods, symptoms, weight, temp, and fertility notes in a simple month-view calendar.
* Discreet iPhone icon simply reads "PTracker."

* Take daily notes of menstrual symptoms including Spotting, Flow, Cramps, Headaches, Backaches, Bloating, Tender Breasts, and Body Aches!
* Track your weight, temperature and moods (over 30+ moods to choose from!)
* Add custom symptoms and moods
* Charts! Beautiful, comprehensive and handy. Charts show weight, temp, symptoms, period length, cycle length, and more.
* Backup/Restore your data with your online backup and restore account. (works across platforms)
* Homescreen shows your predicted ovulation, eight day "fertile window,” and your cycle day. Great for trying to conceive.
* Pregnancy mode activates countdown to baby's due date and week-by-week articles.
* Protect your privacy with TOUCH ID or with a passcode option that is fast and easy.
* Export your period dates and notes to email for doctor's visits.

Period Tracker is loved by millions of users.
MommaRed - "I really like this application. It is easy to use, easy to track and plan for upcoming events. The recent updates have made it even better. One of my favorite iPhone apps."

Blanczz226 - "This is one of my favorite apps. I use it every month and it's extremely accurate. Worth the $ for sure" - "Period Tracker is the ultimate menstrual mentor. You enter in your info, and it tracks your cycles, letting you keep notes about your activities and well being, all the while using twee 'lil hearts .and flowers to denote important days."

Celstemc - "One of my first apps and I am completely in love with it! Won't use another one like it!! Cute and easy to use!"

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.

Please email comments and suggestions to

What's New

Version 9.9.1

Bug fixes

Ratings and Reviews

4.8 out of 5

4.5K Ratings

4.5K Ratings

Great app, customizable, helpful-trip planning!

Not Really A Fan Of iTunes

I originally downloaded this app because I wanted to track certain behaviors with relation to my cycle. Specifically, back pains and those days I just got so frustrated. Sure enough, they were usually a few days before my cycle. What I love about this app is how customizable it is. It has a variety of little icons and pictures, and you can track anything you want from chocolate cravings to headaches. I used a little picture of a whale to track when I started feeling bloated. I just noticed they have a little corked wine bottle with incrementally more bubbles in it to represent constipation. How could you not love that?

I have since had an ablation (procedure for those done with childbirth with extremely heavy periods, it scars uterus lining so it doesn't build up so heavy) and now have my period much less frequently. The app has successfully mapped my new, longer cycle with accuracy. I imagine this app would be extremely useful to someone trying to conceive, or just track their fertility. I also use it to check ahead and see whether any future vacations or work functions will be impacted. Whether I need to pack anything, etc.

Accurate and Simple


I love this app. I have been using it for close to 6 years now? Maybe longer, as I have switched phones and re-entered my data.
The ease of use is seriously amazing. It is impossible not to figure this out within a minute or two.
It has been 98% accurate for me, and out of 6-7 years, I would say that is a pretty great statistic. The only times it was wrong was when I was under a ton of stress, which obviously affects the timing of your period. That was clearly no fault of the app, and it was still very useful to know how late I was exactly.
I love the ability to be able to plan around my cycle, notate feelings/symptoms, and even track intimacy if you're trying to get pregnant or the opposite, hahaha. This is an incredibly useful app, and everything you could ever need comes in the free version. What more could you ask for?

One of the best decisions I have ever made!!


I downloaded this app upon the recommendation of my friend. And boy am I impressed!!

I used it for over a year to track my menstrual cycle. Came in handy knowing when my period was expected and answering the “when was your last menstrual cycle” question at the doctor. Lots of great tools to track symptoms and moods etc. It’s very customizable. Just generally very useful, responsible info for any woman.

When my husband and I decided to try and conceive I used the app to tell me when I was fertile and ovulating. The app even lets you switch to TTC (trying to conceive) mode. They send you emails that give you lots of great info and ways to increase your chances to get pregnant. Well... it didn’t take long! Using the data I had collected on this FREE iPhone app I got pregnant on my very first try. Pretty impressive. Depending on how accurate you have been keeping your data and your own physiology you may have a different experience but it totally worked for me.

Now I have it switched to pregnancy mode! It has info about how far along you are and what to expect. Links to great resources and lots of great comforting advice.

Downloading this app has turned into one of the best decisions I have ever made!! Baby is due Sept 2018. ☺️


GP International LLC
71.7 MB
Health & Fitness
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Dutch, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish, Ukrainian
Age Rating
Rated 12+ for the following:
Infrequent/Mild Mature/Suggestive Themes
Infrequent/Mild Sexual Content and Nudity
© 2018 GP Apps


  • Family Sharing

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

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