Clue Period & Cycle Tracker

4.4
1.35M reviews
50M+
Downloads
Content rating
PEGI 3
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About this app

Clue is the period tracker and fertility app that puts the power of science and the support of fertility experts in your own hands.

Whether you’re trying to get pregnant, tracking cycle-related experiences, or navigating the changes of menopause, Clue’s got you covered. Understand your body and start living in sync with your cycle, instead of in spite of it, with Clue. Discover patterns in your menstrual cycle, access expert advice for things like your birth control, and fertility questions, get pregnant faster, and track your developing pregnancy, all in one easy-to-use app. Clue is more than a period diary. It’s an ovulation tracker, period, and pregnancy calendar ready to guide you through all your cycle’s stages. For life.

Founded and led by women, Clue is safe and inclusive cycle tracker, and one of the only period apps entirely based on science. You can trust Clue as your period calendar, ovulation tracker, and fertility friend.

🔒 More than 11 million people trust Clue with their period, pregnancy, and cycle data

🇪🇺 Your health data is kept safe within the EU and will never be disclosed or shared

5 reasons Clue is your easy-to-use fertility and menstrual cycle tracker:

✓ Set period reminders to be prepared for your next cycle
✓ Plan around your period, ovulation, and fertile days with a menstrual calendar
✓ Keep track of your contraception and birth control pill
✓ Learn the science behind your cycle with health articles that span sex, PCOS, fertility, and pregnancy, written by Clue’s in-house Science Team.
✓ Get pregnant faster with targeted ovulation predictions and a daily fertility tracker

PERIOD AND MENSTRUAL CYCLE TRACKER

Clue Period Tracking empowers you to become the expert on your own body, with 100+ cycle tracking categories for things like your birth control, ovulation pain, PMS, and menstrual flow.

Learn how your cycle affects things like your mood, skin, energy level, sleep, exercise, and sex life, and get a heads up from Clue when you’re tracking experiences that are outside of what’s typical for you. If you have irregular periods you can also use Clue as your irregular period tracker.

The more you track, the better Clue can pinpoint your future period dates, identify patterns in your cycle, and provide you with valuable insights on your unique menstrual cycle to discuss with your OB/GYN for more effective care.

OVULATION CALCULATOR & FERTILITY TRACKER

Trying to conceive? Clue has helped millions of people plan pregnancy. Track ovulation easily, without temperature checks, and get accurate fertility predictions. Log pregnancy and ovulation tests, and plan around your most fertile days to increase your chances of getting pregnant.

PREGNANCY TRACKER WEEK BY WEEK

Pregnancy tracking categories and pregnancy week-by-week guidance. Set your due date countdown with a pregnancy calculator, and learn what to expect with weekly pregnancy highlights, including tips and suggestions from Certified Nurse Midwives.

MENOPAUSE HEALTH TRACKER

Understand changes as your body transitions to menopause (a time known as perimenopause). Track hot flashes and other menopausal symptoms, and get support with science-based health articles.

A subscription to Clue Plus grants you all-in access to Clue Period Tracking, your personal ovulation calculator, and pregnancy app features.

What’s in Clue Plus?
✓ 12 months of advanced ovulation, fertile day, and period predictions
✓ Clue Conceive, a fertility and ovulation tracker to help you get pregnant faster
✓ Tips, advice, and expert answers to your reproductive health questions
✓ Clue Pregnancy Mode for a week-by-week pregnancy calendar
✓ Clue Menopause Tracker

support.helloclue.com.

Note: Clue should *not* be used as a contraceptive.

Helloclue.com

Looking for a period tracker and ovulation app backed by science, created by experts, and with no-nonsense, frills, and flowers? Then Clue is for you.
Updated on
5 June 2025

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
Personal info, Health and fitness and 2 others
This app may collect these data types
Personal info, Health and fitness and 3 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.4
1.33M reviews
Bethan Williams
22 May 2025
Really useful and easy to use app! I've used other period tracking apps that were fine, but I felt a bit bombarded by articles, ads and subscription reminders when I just wanted to track and see trends. This app DOES have useful articles, information and analysis, but it's not in the way of the main function of tracking, so I get the best of both. If I could make one suggestion it would be to add appetite tracking. I think it would be really useful, especially for when I see my dietician!
20 people found this review helpful
Did you find this helpful?
Clue Period Tracker by BioWink
22 May 2025
Hey, thanks for your review! We always enjoy getting feedback from people who use Clue. We’re constantly looking for ways to improve our app and really appreciate your suggestion. We’ll pass it on to the relevant team. All the best, Ilaria - Support Team
what a GIANT NERD
3 June 2025
I love that they protect my data and I love all the features available. BUT THE ADS! OH DEAR LORD THE ADS! Every time I open the app they ask me if I want to buy their premium service (Clue Plus). The exit out of that screen is impossible to find and when I do find it, I'm hit with ANOTHER OFFER FOR CLUE PLUS. Any time I switch a page, ANOTHER OFFER. And the app itself runs SUPER clunky. It's so infuriating to work with I'm highly considering just going back to paper tracking. Clue, fix it!!!!
2 people found this review helpful
Did you find this helpful?
Clue Period Tracker by BioWink
3 June 2025
Hey, thanks for your review. We’re sorry to hear you feel like you’ve been seeing too many Clue Plus ads. We’ll pass your feedback along to the relevant team. All the best, Ilaria from Clue.
R Waters
27 May 2025
I used to love this app, but I find it really bothersome how now there is a prompt to subscribe that takes over the whole screen every time I open it and again every time I finish tracking. Please implement a "do not remind me again" check box. This has been making me want to look elsewhere for a while now, but when I saw "fomo" tactics with "limited time only" and countdowns plastering the screen that decided it for me. Manipulation like that just gives me the ick. Will not be returning.
5 people found this review helpful
Did you find this helpful?
Clue Period Tracker by BioWink
27 May 2025
Hey there, thanks for sharing your thoughts—we totally hear you. We understand pop-ups can be disruptive. We will always keep essential period tracking features free, but it’s ultimately subscriptions that make that possible and keep Clue running. All the best, Ilaria - Support Team

What's new

With Clue’s newest update, you can see which cycle phase you’re in, which hormones are shifting, and how others feel in the same phase. Learn how hormones may affect your mood, energy, or body.

Whether you're curious about cycle syncing, managing PMS, or just want to feel more in tune with your body, this feature is for you.

Explore your cycle phases now by heading to your Cycle View in Clue.