Period Calendar Period Tracker

Contains adsIn-app purchases
4.89M reviews
Content rating
USK: All ages
100M+
Downloads
Content rating
USK: All ages
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About this app

Period Calendar is a period tracker and ovulation tracker in one — predict your period, ovulation and fertile window, and track your chance of getting pregnant.

ā˜…The rating 4.9ā˜…
Popular in 63 Countries.
Trusted by 300 million Users.

Keep track of your menstrual cycles with Period Calendar. It tracks your periods, blood flow, 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 menstrual flow, cervical mucus, BMI, sexual activity, weight, temperature, symptoms or moods. Think of it as your personal period diary.

ā°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)

šŸ“PERIOD & FERTILITY TRACKER:
- Helps predict menstruation, cycles and ovulation
- Ovulation calculator and tracker
- Period calculator, fertility calculator and spot on prediction

šŸ‘¶šŸ¼TRYING TO GET PREGNANT & BIRTH CONTROL APP:
- Fertile symptoms tracker, like cervical firmness, cervical mucus, cervical opening
- Check your odds of conceiving each day for better family planning
- It is the birth control app, spot on tracking the period & fertile days

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

šŸ“²NEVER LOSE DATA:
- Utilizes Google account data backup and Restoration
- Backup and restore your period data to phone or email

šŸ”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.

No account creation and real-name registration are required. You can use all of its features anonymously.

We place the utmost importance on your data security. Your anonymous data can be synced on your own in an encrypted manner, so you can back up and restore your data with confidence.

We respect your right to have full control of your data. You can delete all data with just one click whenever you want. We don’t collect or store any of your data in any way.

Ovulation app
It is the reliable ovulation app for ovulation and period tracker, you can check your ovulation calendar, period calendar, it will be more accurate for your usage.

Pregnancy apps
Looking for pregnancy apps? No satisfied pregnancy apps? Try the best pregnancy app! It helps you easily get pregnant or birth control.
Period and pregnancy tracker. Ovulation, fertility & menstrual calendar.
Updated on
Sep 10, 2026
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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

4.78M reviews
Sky Mallory (SkyTheImmortal)
May 22, 2024
I've had basically no issues with this app. Been using it for like almost 10 years and it was actually the first period tracker app I've tried. However I've been wanting to look into the ad free version, but can't find the amount it costs to go ad free. I instantly get send to the payment agree window without seeing a price!
19 people found this review helpful
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Simple Design Ltd.
May 22, 2024
Hi, thanks for your support. You can check it after you click ā€œAgree". And the payment will be deducted only after you have further confirmed your purchase. Since the app is free, we provide a low-cost ad-free option to support our team running. For any other questions, please contact us at periodcalendar.feedback@gmail.com for more help. Thanks.ā¤ļø
A Google user
November 14, 2018
I absolutely love this app. I am using it now since 2016 I think and it's super easy to use. So many options, private and that you can just click on the pet when your period starts/ends makes it very fast to stay sure about your cycle. The overview allows me to be aware of the time that my period generally would come or how many days I'm to late. All in all well done :)!.
19 people found this review helpful
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A Google user
February 19, 2019
I highly recommend it! Been using it for more than five years! It has always been accurate (except for maybe once or twice when my body went through some change). Transferred it (due to mobile phone changes) about 3 or 4 times now and it never lost any data. I can't compare it to any other app (since I only use this one), but it has really never failed me - super happy with the job it does!! :)
20 people found this review helpful
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What’s new

Pregnancy Mode got a big upgrade! Watch your baby's size grow week by week and see what to expect for you and your baby. Enjoy it all in a smoother, more accurate pregnancy tracker.