Period Calendar Period Tracker
Period Calendar Period Tracker is a health and fitness app from Simple Design Ltd. for tracking periods, ovulation, fertility, and pregnancy.
Period Calendar Period Tracker is for women who want to monitor their menstrual cycles, whether they are trying to conceive or avoid pregnancy. It helps predict periods, ovulation, and fertile windows, and lets you log symptoms, moods, and other health data. The app is free, works without an account, requires Android 6.0 or higher, and has a size of 59 MB.
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Period Calendar Period Tracker is a health and fitness app by Simple Design Ltd. that helps users monitor menstrual cycles, predict ovulation and fertile windows, and track the likelihood of conception. Designed for both individuals planning a pregnancy and those seeking natural birth control, the app functions as a detailed period diary where users can log daily symptoms, moods, physical measurements, and intimacy. It also includes reminders for contraceptive methods and customizable notifications to keep sensitive information discreet.
The app offers a comprehensive set of tracking tools, including period and fertility calculators, ovulation prediction based on body temperature and test results, and a dedicated pregnancy mode that provides weekly fetal size updates. Users can record cervical mucus, cervical firmness, weight, BMI, and sexual activity, making it a versatile companion for reproductive health. With support for Wear OS complications and tiles, key predictions and reminders can be accessed directly from a smartwatch.
Privacy is a central focus: the app does not require account creation or real-name registration, allowing full anonymous use. Data can be backed up and restored via Google account or email, with encryption for syncing. Users retain full control and can delete all data with one click, as the developer states that no personal data is collected or stored. The app requests permissions for location, photos/media/files, and storage, which are used to support features like photo attachments and data backup.
Key features
- Predict menstruation, cycles, and ovulation with period and fertility calculators
- Track fertile symptoms including cervical mucus, cervical firmness, and cervical opening
- Check daily odds of conception for family planning or birth control
- Log menstrual flow, weight, BMI, temperature, symptoms, moods, and intimacy
- Customizable pill and period reminders with discreet notification text (supports pills, ring, patch, injections)
- Body temperature chart to help determine ovulation date
- Pregnancy mode with weekly baby size updates and what-to-expect information
- Multi-account support with security protections and timeline search
- Backup and restore data via Google account or email, with encrypted syncing
- Wear OS complications and tiles for period, ovulation, water, and pill reminders
How to install
- Tap the download button on this page to get the APK file (59 MB).
- When your browser or file manager asks, allow it to install apps by enabling the 'Install unknown apps' setting.
- Open the downloaded APK file from your notifications or downloads folder.
- Tap 'Install' and wait for the installation to complete.
- Open the app from your home screen or app drawer. Your device must run Android 6.0 or higher.
Pros
- Anonymous usage without account creation or real-name registration
- One-click deletion of all data, with no collection or storage by the developer
- Encrypted backup and restore options via Google account or email
- Comprehensive tracking for both conception and birth control needs
- Customizable discreet notifications to protect privacy in public
- Support for Wear OS devices for quick access to predictions and reminders
Cons
- Requires permissions for location, photos/media/files, and storage, which may concern privacy-sensitive users
- Contains ads and in-app purchases, which can be intrusive
- Large file size of 59 MB may be heavy for some devices
Latest changes
The latest update of Period Calendar Period Tracker, released on September 10, 2026, brings a major upgrade to Pregnancy Mode. You can now watch your baby's size grow week by week and see helpful expectations for both you and your baby. The improved pregnancy tracker offers a smoother experience with more accurate tracking, making it easier to follow your journey.
Version history
| Version | Size | Requires Android | Updated |
|---|---|---|---|
| 1.77.355.GP | 51 MB | 6.0 | Oct 11, 2026 |
| 1.77.364.GP | 56 MB | 6.0 | Sep 6, 2026 |
| 1.77.365.GP | 59 MB | 6.0 | Sep 4, 2026 |
| 1.77.361.GP | 55 MB | 6.0 | Aug 6, 2026 |
| 1.77.348.GP | 48 MB | 6.0 | Apr 2, 2026 |
| 1.77.331.GP | 29 MB | 5.0 | Jan 14, 2026 |
| 1.746.294.GP | 20 MB | 4.4 | Jan 18, 2024 |
This app is for women tracking their menstrual cycles, whether they are trying to conceive, avoiding pregnancy, or simply monitoring irregular periods and related symptoms. It also suits individuals who prioritize privacy and want a period tracker that does not require personal identification.
To get the most accurate ovulation predictions, log your body temperature daily at the same time and record fertile symptoms consistently. Use the discreet notification text option if you want reminders to appear less obvious in public. Regularly back up your data via your Google account or email to avoid losing your history if you switch devices.
Permissions
FAQ
What does the recent Pregnancy Mode upgrade add?
The latest update significantly improves the pregnancy experience by allowing you to watch your baby's size grow week by week. It also provides information on what to expect for both you and your baby, all within a smoother and more accurate pregnancy tracker.
Can I use Period Calendar without creating an account?
Yes, the app does not require account creation or real-name registration. You can use all of its features anonymously, and you have full control to delete all your data with just one click whenever you want.
How does the app handle data backup and privacy?
The app offers several backup options, including using your Google account for data backup and restoration, as well as backing up and restoring your period data to your phone or email. It states that your anonymous data can be synced in an encrypted manner, and that it does not collect or store any of your data.
Does the app provide reminders for contraceptive methods?
Yes, it includes a contraceptive pill reminder that covers various methods such as pills, rings, patches, and injections. You can also customize the notification text to make it discreet and avoid embarrassment in public.
What types of symptoms and health data can I log in the app?
The app functions as a personal period diary where you can record menstrual flow, cervical mucus, BMI, sexual activity, weight, temperature, symptoms, and moods. It also tracks fertile symptoms like cervical firmness and cervical opening, and provides a body temperature chart to help determine ovulation date.
Period Calendar Period Tracker offers a feature-rich solution for menstrual and fertility tracking, with a strong emphasis on privacy through anonymous use and easy data deletion. While the required permissions and presence of ads may give some users pause, its comprehensive tools and backup options make it a reliable choice for many.
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Updated: Oct 24, 2026