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iPeriod Period Tracker Free - Menstrual Calendar

By Winkpass Creations, Inc.

This app is only available on the App Store for iOS devices.


"A must-have Personal Assistant" - GLO.MSN.COM
"Top iPhone App for Busy Women" - FORBES
"...a simple yet ingenious application"- POPULAR SCIENCE
"Health Rules for Every Woman: Use a tracking app like iPeriod Ultimate" - GLAMOUR
"Allows smartphone users to fastidiously track their monthly cycles" - THE HARVARD CRIMSON
"I highly recommend the iPeriod app..." - MOMMY TOO! MAGAZINE
"What's Hot" - APP STORE

Now with Touch ID!

Celebrating 6 years in top Healthcare and Fitness apps!

Let iPeriod® keep track! The most customization with more than 80 symptoms and 28 free themes and colors!

iPeriod's beautiful VISUAL CALENDAR makes it easy for you to view your menstrual cycles at a glance!


•DISCREET icon name "iP"
•Track periods, symptoms, notes, moods, weight and more (80+)!
•Let iPeriod predict periods, ovulation, and fertility (great for trip planning!)
•Extensive customization (customize symptoms, choose from 26 free skins, 4 calendar styles, choose which icons appear on the calendar)
•View graphs of your data
•Receive alerts for when your period is expected!
•Password protection
•Export and print your data to take to your doctor appointments
•Breast exam reminders
•Community Forums

Enter your period for at least two consecutive cycles, and iPeriod® calculates your average duration, cycle length and estimates the dates of your next expected periods, fertile days and ovulation! Each time new data is entered, statistics are updated.


The only app that truly graphically displays your data on the calendar... other apps simply place a single symbol to represent all symptoms.

• The MOST accurate: predictions are based on your cycles (not averages) and improve over time
• The MOST customization: adjustable luteal phase, hide symptoms not used by you, manage which icons appear on calendar
• The MOST personalization: 4 calendar styles, 28 skins
• Customizable icons to better suit your needs
• Breast exam reminders
• Searchable note history (including freeform notes, moods and symptoms)
• Email alerts

Do not rely on iPeriod® to prevent pregnancy.

Be sure to also check out iPregnant (iPeriod's Pregnancy Tracking Companion)!

What's New in Version 3.7

- iOS9 support
- Stability improvements

iPhone Screenshots

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Customer Reviews

Been Using This App For 3+ Years!

I love knowing ahead of time when to expect my cycle and while this app it isn't 100% accurate, it is pretty darn close. I have noticed that using the "mark day by day" feature gives you even better predictions. (It's never off by more than 3 days).

The app is only as good as the data you put in, so try to be accurate. And of course we are humans & not robots so some months will vary slightly BUT the more info you put in, the more patterns become evident and this app picks up on those patterns.
Also, while using this app I'm now able to notice the slightest symptoms days before my cycle even starts so if the app is a little off, I'm always correct 24 hours before it starts. If you have normal-heavy flow, then I recommend using panty liners a few days before it says your cycle will start.

Best period app

I love this app! The graphics and color are wonderful. You can pick your own skin color for the app. I like the labeling and the accuracy. I just wish that I can transfer all my data to my new phone! I should be able to log onto any device with my email and get all of my history!!!!!! Therefore losing a star... I don't mind the ads because it's a free app. I love that I can keep track of my love connection and write notes. Also you can tailor notifications for fertile week and period week. I've looked through all the other period apps and the configuration is so weird. This is the best one! PLEASE KEEP THE HISTORY so I can continue to use this great app!

Adds ruined the app

I've used this app for a long time. It's pretty easy to use and has a variety of features even for the free version. However, the longer I've had the app, the worse it has gotten because of the adds. It's gotten to the point that there is a pop up add as soon as I open the add and it's nearly impossible to navigate the app because of the adds. I'll go in to just start the tracking of a cycle and have to start over at least a dozen times because the adds pop up. Most adds are the video ones that last and you can't exit out until they are finished playing. And the adds are not helpful one either, mostly just for app games. I'm deleting this app and finding a different one.

iPeriod Period Tracker Free - Menstrual Calendar
View in iTunes
  • Free
  • Category: Health & Fitness
  • Updated:
  • Version: 3.7
  • Size: 58.9 MB
  • Languages: English, French, German, Italian, Japanese, Korean, Russian, Simplified Chinese, Spanish
  • Seller:
Rated 12+ for the following:
  • Infrequent/Mild Mature/Suggestive Themes
  • Infrequent/Mild Sexual Content and Nudity
  • Infrequent/Mild Medical/Treatment Information

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. Export Data Session$1.99
  2. Premium Skin Pack - Patterns$0.99
  3. Premium Skin Pack - Travel$0.99
  4. 20 credits $0.99
  5. Premium Skin Pack - Graffiti$1.99
  6. Subscription: Premium Forum - 1 Month $1.99
  7. Subscription: Premium Forum - 6 Months $5.99
  8. Subscription: Premium Forum - 1 Year $9.99