Four Phases
Cycle tracker for partners
About
This app helps partners understand and support individuals through their monthly cycle. It provides daily insights into hormonal phases, actionable advice from an AI coach, and resources for better communication and care.
What's New in Four Phases
1.0.4
September 30, 2026
Unlink your partner from Settings whenever you need to. Your partner's name now stays on your phone when you ask Coach anything. Security and reliability improvements.
MoreSubscriptions & In-App Purchases
Four Phases Pro
Daily AI coaching, full phase guides, and reminders.
FAQ
What is Four Phases?
Four Phases is a cycle tracker designed for partners to understand the four distinct phases of the menstrual cycle (menstrual, follicular, ovulation, and luteal). It provides daily insights and actionable advice to help partners show up effectively.
How does Four Phases work?
You set up the cycle once by entering the last period and average cycle length. The app then predicts the rest and provides daily views of the current phase, AI-generated advice, and resources like gift ideas and conversation starters.
Is Four Phases free?
All features are available for free for the first 7 days. After the trial period, a Four Phases Pro subscription is required to continue using the app's full functionality.
What are the subscription options for Four Phases Pro?
Four Phases Pro offers two subscription plans: a monthly plan for $9.00 and an annual plan for $89.99.
Does Four Phases have ads?
No, Four Phases is ad-free. The app prioritizes user privacy and does not contain advertisements.
What devices does Four Phases support?
Four Phases is currently supported on iPhone and iPod devices.
How often is Four Phases updated?
The app was last updated on September 30, 2026, with version 1.0.4. This indicates regular updates to improve functionality and user experience.
Is Four Phases suitable for younger users?
Four Phases has an age rating of 12+, making it appropriate for teenagers and older users interested in understanding the menstrual cycle.
