Period Cycle Calculator
Flow Cycle & Period Tracker
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
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
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, nguyen thanh, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- nguyen thanh
- Size
- 228.2 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- One Week Premium $2.99
- 1 Year Premium $59.99
- One Month Premium $9.99
- Copyright
- © 2026 Devy