Period Tracker Period Calendar

Contains adsIn-app purchases
4,9
4,79M reviews
100M+
Downloads
Content rating
Everyone
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About this app

★The rating 4.9★ period calendar!

Popular in 63 Countries.
Trusted by 300 million Android Users.

Keep track of your menstrual cycles with Period Calendar. It tracks your periods, cycles, ovulation and the chance of conception. Period tracker helps both women looking to conceive and those trying to birth control.

Period Tracker is useful, whether you have irregular periods or regular periods. It can track your chance of pregnancy every day. You can also record your cervical mucus, BMI, sexual activity, weight, temperature, symptoms or moods. Think of it as your personal period diary. It will help you get in shape, lose weight, and stay healthy.

PILL REMINDER & PERIOD REMINDER:
- Customize the notification text to make it discreet, to avoid never being embarrassed in public.
- Notifications for period, fertility and ovulation tracker
- Contraceptive pills reminder (includes pills, ring, patch & injections)

PERIOD & FERTILITY TRACKER:
- Helps predict menstruation, cycles, and ovulation
- Ovulation calculator and tracker
- Period calculator and fertility calculator

TRYING TO GET PREGNANT & BIRTH CONTROL:
- Fertile symptoms tracker, like cervical firmness, cervical mucus, cervical opening
- Check your odds of conceiving each day for better family planning;

LOSE WEIGHT, TRACK SYMPTOMS & MOODS:
- Intimacy tracker
- Body temperature chart helps you determine ovulation date
- Predict your ovulation date according to the ovulation test result

NEVER LOSE DATA:
- Utilizes Google account data backup and Restoration
- Backup and restore your period data to phone or email

MULTI ACCOUNT & SECURITY:
- Multi accounts to track & security protections
- View or search all notes through your timeline

SUPPORT FOR WEAR OS COMPLICATIONS & TILES:
Period & ovulation prediction, water drinking reminders, and pill reminders are all available by setting up complications and tiles on your wear OS devices.
Updated on
10 Sept 2025
Events and offers

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.
No data shared with third parties
Learn more about how developers declare sharing
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

4,9
4,67M reviews
Eowyn Battrick
17 January 2025
This app has been very helpful! It has many many many options, has no adds, and has plenty of privacy. It is free and is the best period calendar I have ever gotten. You can always delete data, which I find very helpful. It also helps tell you how you can get rid of cramp pain and helps you with mood swings, really any pain, emotions, support, ect. I deeply think that you should get this app, it is very helpful. And if you don't like something on it you can always change it or contact them.
787 people found this review helpful
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Simple Design Ltd.
23 January 2025
Hi, thank you for your support! We are very happy that the app's features have helped you. Your feedback is valuable to us, and we’re committed to continually improving the user experience. If you have any further suggestions, don't hesitate to reach out to us at periodcalendar.feedback@gmail.com. ❤️
Constel Dermal
26 September 2025
It's a well made app, I like it. Edit: I still like this app a lot, but lately I find it's not predicting when my next period is going to be because it's skipping a whole month.. and I don't know how to fix this?? I input my periods every month so it definitely has enough data to predict the upcoming month, I would think. But instead, for instance, I had one that just ended and it's saying my next one won't be till the month after next.. is there a way to fix this?
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Simple Design Ltd.
28 September 2025
Hi, we'd love to help! Could you please check if the cycle length (Settings > Cycle length) matches your actual situation? If not, you can adjust it and then check again. If the issue remains, kindly send us some screenshots of the calendar page via "Settings -> Bug report & Feedback". It will help us locate it quickly. Thanks.
Leslie Creedon
11 September 2025
Just realized I've been using this app for over 10 years and it makes my life so much simpler when it comes to having the accurate information for my doctors, as well as noticing patterns for myself. Thank you for such an easy-to-use (and super cute) app that's exactly what I need to take care of myself. I haven't needed the pregnancy tracking feature, but I like that it has the option. I also love the little pets and themes. And the ads are not obnoxious. 10/10 would recommend! ✨️
17 people found this review helpful
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What's new

• Bug fixed