
Code Red: PMDD Tracker & Diary
Luteal phase & PMS symptom log
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Free
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About
If you don't recognize yourself the week before your period — snapping at people, crying, not sleeping, unable to focus — you're not alone. This is what severe PMS and PMDD, premenstrual dysphoric disorder, can look like.
Code Red is built specifically for this. Not another period calendar, but a diary that helps you understand what's happening to you and get through the hard days more easily.
AN AI ASSISTANT THAT KNOWS YOUR CYCLE
• Tell it how you feel: it goes through your symptoms, explains how they relate to your cycle phase and suggests what may help right now
• Offers exercises based on cognitive behavioral therapy
• Sees your entries only with your permission
PMS & PMDD MODE
• A daily rating of 24 symptoms structured like the DRSP, the scale doctors use when assessing PMDD
• After a couple of cycles you can see which symptoms come back and on which days
• A morning heads-up when, based on past cycles, a hard day may be close
CYCLE & FORECAST
• Your cycle day and phase on the home screen
• Period and hard-day forecast based on your own history
WIDGETS
• Cycle day, days until your period and your day right on the Home Screen — no need to open the app
APPLE HEALTH
• Period days and symptoms sync both ways
• Sleep and resting heart rate are included in your doctor report
FOR YOUR DOCTOR
• A PDF report or spreadsheet for any period up to a year
• Medications and supplements with reminders in the right cycle phase
Code Red does not diagnose and does not replace a doctor. The period forecast is not suitable for contraception.
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What's New in Code Red
1.2
October 18, 2026
We’ve updated the design and made it easier to track your cycle and log how you feel each day.






