**Rated the top free period and ovulation tracker app by the journal Obstetrics & Gynecology, a publication of the American College of Obstetricians and Gynecologists (ACOG).**

Clue is a period tracker and ovulation app that uses science to help you discover the unique patterns in your menstrual cycle. Millions of people use and trust Clue for accurate information and personalized reminders about their period, PMS, ovulation and fertility. It’s quick and easy to track your period, PMS and general health with Clue.

With Clue, your health will no longer be a mystery. Keep track of your period and monitor your own health trends with multiple mood trackers, exercise trackers and health logs. Clue learns from you how you really are.

Track your period and your health today with Clue:

Period Tracking:
+ Track your period, flow heaviness and menstrual products you used.
+ Receive accurate predictions and calendar reminders before your next period, PMS and ovulation.
+ Record even more with your health. Track sex, pain, moods, cervical fluid, and more.
+ Track and predict periods with our calendar. Easily view past periods, PMS and fertility data, as well as upcoming predictions for your next three cycles.

Scientific Information:
+ Read in-depth information about the menstrual cycle, complete with medical and scientific references.
+ Check out an analysis of your current and past menstrual cycles, along with an overall average, to easily observe trends.
+ Clue uses an algorithm that learns from the data YOU input. The more you use it, the smarter it gets.
+ Enhanced iOS features, including reproductive health integration with the Health app, Touch ID and Today Extensions.

Inclusivity for All Ages:
+ We promise to never use flowers, butterflies, euphemisms or pink – ever. Track and get just the health information you need.
+ Clue is a gender-neutral period planner and health information -- for everyone who has a menstrual cycle.
+ Suitable for all ages from teenagers upwards.

General Health Tracking:
+ Log your birth control, or plan for pregnancy.
+ Track your basal temperature for more accurate ovulation and fertility predictions - perfect if you are trying to conceive.
+ Track your health through your period, PMS, birth control, ovulation, cramps, emotions, skin, hair, sleep, exercise and more.

Accessible Data:
+ Fastest data entry of any period tracker.
+ Record of your period dates and symptoms
+ All of your data is on hand for doctor’s appointments
+ Import and sync data from other tracking apps like Apple Health
+ Track your basal temperature for even more accurate ovulation and fertility predictions - perfect if you are trying to conceive
+ Get to know your body and identify unique health patterns and trends

Subscription Information
Want more from Clue? In addition to the personalized insights you receive from the free version of Clue, you could get forecasts that predict when you might experience PMS, cramps and other patterns in your cycle with Clue Premium.

1-month subscription for $6.99
3-month subscription for $17.99
6-month subscription for $29.49
12-month subscription for $46.99

These prices are in US dollars. Pricing in other currencies and countries may vary.

Once purchased, subscriptions automatically renew unless auto-renew is turned off in your iTunes. Account settings at least 24 hours before the end of the payment period.

**We want to hear from you**
We love hearing from Clue users. Send your feedback, questions and suggestions to

**Get clued in -- Follow us online for the latest app and health news**
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Pinterest - @clue_app

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What's New

Version 4.0.2

*Improved performance, better sex (icons)*

Say goodbye to the tie! Based on your feedback we've updated the icons in our sex tracking category. Flip flops represent sex without protection, and there's a rubber boots icon for when you're...protected against the elements ;p

Plus we’ve squashed a few bugs and done some behind the scenes tune-ups to make Clue run faster and smoother. Enjoy!

Customer Reviews

4.7 out of 5

110 Ratings

110 Ratings


Maria Hjorth

Virkelig god og brugbar app



Det er nem og enkelt.
Rart at have/få et overblik 😊

Rigtig fin app mangler dog...


En super fin app som jeg bruger utrolig meget.
Jeg mangler dog at man kan lave tags heri om hvornår man har taget hormonindsprøjtning.


BioWink GmbH
133.3 MB
Health & Fitness
Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.
English, Danish, French, German, Hindi, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese, Turkish
Age Rating
Rated 12+ for the following:
Infrequent/Mild Mature/Suggestive Themes
Infrequent/Mild Medical/Treatment Information
© BioWink GmbH
In-App Purchases
  1. 12 Months 369,00 kr


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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