Crimson: Cycle & Fertility

Decode your cycle with AI-powered period and fertility tracking.

Crimson is an AI-powered period and fertility tracker that helps you decode your cycle. Track your periods, predict fertile windows, and get personalized insights — all with the help of intelligent AI analysis.

SMART CYCLE TRACKING:

• Log periods, symptoms, moods, and daily health data
• Automatic cycle length calculation and predictions
• Fertile window and ovulation estimates
• Visual calendar with color-coded cycle phases

AI-POWERED INSIGHTS:

• Chat with an AI assistant that understands your cycle
• Get personalized insights based on your tracking data
• Understand patterns in your symptoms and moods
• Context-aware responses tailored to your current cycle phase

PREDICTIONS & ANALYTICS:

• Weighted moving average predictions that improve over time
• Cycle regularity scoring
• Phase detection (menstrual, follicular, ovulation, luteal)
• Historical trends and pattern visualization

PRIVACY FIRST:

• Works offline with local storage
• Secure cloud sync with encryption in transit and at rest
• Your data stays yours — no selling to third parties
• Free account with secure sign-in keeps your data backed up

BEAUTIFUL DESIGN:

• Clean, intuitive interface
• Dark and light mode support
• Elegant charts and visualizations
• Quick daily logging with minimal taps

Whether you're tracking for fertility awareness, health monitoring, or simply understanding your body better, Crimson gives you the tools and intelligence to take control of your cycle.

Privacy Policy: https://getcrimson.app/privacy Terms of Use: https://getcrimson.app/terms