Flow State Cycle
Private Period Tracker
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Flow State is a private, local-first period tracker that keeps your health data on your device — no account required, no cloud, no tracking.
Log your period with a single tap. Flow State learns your unique cycle and predicts your next period using your own data, not assumptions.
FEATURES
• Smart predictions — weighted rolling average based on your cycle history, not a generic 28-day guess
• Symptom and mood tracking — log cramps, headache, fatigue, mood changes, and more
• Cycle insights — flow intensity patterns, symptom frequency, mood distribution, and correlations
• Doctor-ready PDF report — share a clean summary with your healthcare provider
• Apple Health and Google Health Connect sync — read and write menstrual data across your health ecosystem
• Curated essentials — helpful products for each phase of your cycle
• Dark mode — full light, dark, and system theme support
• CSV export — download your complete cycle history anytime
PRIVACY FIRST
Your data never leaves your device. No account, no servers, no analytics, no ads. Period.
- Add new placeholder prediction UI for when not enough history is provided
The developer, Brett East, 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 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
- Brett East
- Size
- 35.1 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- Copyright
- © 2026 Brett East