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Clue - Health & Period Tracker

By BioWink GmbH

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


**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

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.

Download Clue and start tracking your health today!

Please note: Clue – Period Tracker is not a contraceptive.

**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**
Sign up for our newsletter:
Read our blog:
Instagram - @clueapp
Pinterest - @clue_app

Here are our Terms of Service -
And our Privacy Policy -

What's New in 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

Cannot live without this app.

I’ve been using this app for 2+ years. I downloaded this because I needed a period tracker and it had better reviews than the rest out there. During the course of the 2.5 years I’ve used the app, the app has only gotten better. This app has been so helpful for me in tracking my periods and UNDERSTANDING my cycle. The other period apps I’ve used have just tracked my cycle, plus they’ve been kind of cheesy. This is a great looking app for one, but more importantly it performs beautifully, it’s reliable....and it has ACTUALLY helpful information and tips to help you understand your body and your cycle. I cannot say enough about how amazing this app is. All of the features available to track symptoms and feelings have helped me to predict my cycle and know immediately if something is wrong or out of the ordinary. I’ve struggled with an eating disorder in the time I’ve been using the app, and the analysis section has helped me to understand how it’s affected my period and in what ways (using all the handy trackers!) anyways. Love this app, it’s an essential for all women in my book. Thank you HEAPS to the developers! ❤️🤗


Being only 16, I’m not exactly paying the closest attention to when I’m going to start my period and that has caught me off guard a couple (ok many) times. This app sends me a reminder beforehand so I am always prepared. Its super easy to use because the layout is easily navigable. Also it’s very quick, it takes me 5 minutes AT MOST to input all my information in. You can also use it when you’re not on your period to track everything from medications you take to your sex drive! And one of the best things about it is the privacy of it. It’s not a gendered picture for the app so nobody really knows what it is unless they open it AND EVEN THEN they need a fingerprint or password to enter. This is great for a teenager like me who needs privacy, and a gentle reminder. Also it’s cool that I can share my cycle dates with somebody else like my mom if need be. Easily a 5 Star app! 12/10 recommend

Incredibly Helpful!!

I love clue and have been using it for almost a year now. It’s so helpful with tracking my period and when it comes, and can even send you a notification before it starts so it doesn’t surprise you. It tells you about patterns in your cycle and yours compared to the global average for your age.
I love the design of it too. It’s very discreet, looks like a regular news app or something, as well as there is an option to put a passcode to access the app. So great if you like your privacy. I also enjoy that it is completely unisex, for anyone and everyone that has a period. As the description says, I love that there is never any cutesy flowers or pink. Yuck. It is very informational about what is happening with you if you are confused. I use it almost every day!
Thanks clue for making one of the most useful apps on my phone!

Clue - Health & Period Tracker
View in iTunes
Offers iMessage App for iOS
Offers Apple Watch App for iPhone
  • Free
  • Category: Health & Fitness
  • Updated:
  • Version: 4.0.2
  • Size: 133 MB
  • Apple Watch: Yes
  • Languages: English, Danish, French, German, Hindi, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese, Turkish
  • Seller:
Rated 12+ for the following:
  • Infrequent/Mild Mature/Suggestive Themes
  • Infrequent/Mild Medical/Treatment Information

Compatibility: Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. 1 Month$6.99
  2. 12 Months$46.99
  3. 6 Months$29.49