Period Cycle Calculator
nguyen thanh Health & Fitness iPhoneiPadiPod touch
Period Cycle Calculator is a free Health & Fitness app for iPhone and iPad by nguyen thanh. Requires iOS 15.0. Updated October 21, 2026.
- Price
- Free
- on the App Store
- Size
- 195 MB
- Age 4+
- Updated
- Oct 21
- 2026 · v1.0.10
Screenshots
About Period Cycle Calculator
Period Cycle Calculatorr helps you easily track your menstrual cycle and predict upcoming periods, ovulation days, and fertile windows. With a simple and intuitive interface, the app makes it easy to understand your cycle and stay prepared every month. Whether you want to monitor your cycle, plan ahead, or simply understand your body better, app provides reliable predictions based on your personal cycle data. Key Features • Period Prediction Know when your next period is likely to start based on your cycle history. • Ovulation & Fertile Window Calculator Identify your ovulation days and fertile window to better plan or avoid pregnancy. • Cycle Calendar View your past and upcoming cycles in a clear and simple calendar. • Easy Logging Quickly record your period start dates to improve prediction accuracy. • Simple & Private Your data stays on your device and is only used to provide cycle predictions. Designed for Simplicity App is built to be lightweight and easy to use. Just enter the start date of your last period and your average cycle length, and the app will calculate: Next period date Ovulation day Fertile window Disclaimer This app provides predictions based on the information you enter and should not be used as a medical or contraceptive tool. Always consult a healthcare professional for medical advice. Terms of Use: https://devworldvn.com/term
What’s new
Version 1.0.10 · Updated October 21, 2026
Bug fixes and performance improvements
App privacy
The developer, nguyen thanh, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Diagnostics: Crash Data, Performance Data
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Crash Data, Performance Data
Used for: Third-Party Advertising, Analytics
Alternatives to Period Cycle Calculator
Looking for apps like Period Cycle Calculator? Here are 6 similar apps on the App Store. The highest rated is Rosie - Period Tracker (5.0/5), and all 6 are free to download.
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Period Log Tracker
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Rosie - Period Tracker
5.0
-
RYTEX: Period & Cycle Tracker
-
ZoeFlow - Period Tracker
-
LunaCycle: My Period Diary
-
RoseVault: Cycle Tracker
5.0
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Period Cycle Calculator | – | Free | October 21, 2026 | |
| Period Log Tracker | – | Free | Jun 10, 2026 | Compare |
| Rosie - Period Tracker | 5.0 / 5 (1) | Free | Jan 19, 2026 | Compare |
| RYTEX: Period & Cycle Tracker | – | Free | Oct 10, 2026 | Compare |
| ZoeFlow - Period Tracker | – | Free | Oct 9, 2026 | Compare |
| LunaCycle: My Period Diary | – | Free | Jul 21, 2026 | Compare |
| RoseVault: Cycle Tracker | 5.0 / 5 (2) | Free | Jun 28, 2026 | Compare |