Flow: Cycle & Period Calendar
Fertility Cycle & PMS Calendar
About
Track your menstrual cycle, predict periods, and monitor fertility with this comprehensive health app. It adapts to your body's unique patterns, offering insights into PMS, ovulation, and hormonal health. Designed for all stages of reproductive life, from teen years to perimenopause.
What's New in Flow
1.0.7
July 1, 2026
Bug fixes and minor improvements.
Developer apps
FAQ
How accurate is Flow's period prediction?
Flow can predict your next period with up to 98% accuracy after tracking for 3 cycles. This allows for reliable planning and awareness of your menstrual cycle.
Does Flow offer support for irregular cycles?
Yes, Flow is designed to adapt to your body, including tracking for irregular cycles. It also offers specific features for endometriosis tracking.
What kind of health data can I log in Flow?
You can log a wide range of symptoms including cramps, spotting, mood, energy levels, basal body temperature (BBT), and cervical mucus. This provides a comprehensive overview of your reproductive health.
Is Flow suitable for teenagers?
Flow includes a teen-friendly mode that offers a guide for first periods and education on mood and hormone fluctuations, making it suitable for younger users.
Does Flow have ads?
No, Flow is ad-free, providing an uninterrupted user experience. This allows for a more focused and private tracking of your health data.
How is my privacy protected with Flow?
Flow uses end-to-end encrypted, secure cloud storage for your health data. The app states that your data belongs to you and is never sold.
On which devices can I use Flow?
Flow is available for iPhone and iPod. It also offers cloud sync across all devices, allowing you to access your data from multiple platforms.
How often is Flow updated?
The latest version of Flow is 1.0.6, last updated on March 11, 2026. This indicates a recent update, suggesting ongoing development and support for the application.
