Moon Quest
PMDD, PME & PMS Guide
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
You feel a shift before your period: your mood drops, your anxiety spikes, and you might say things you regret. And then it passes... until next month.
You've probably been told it's "just PMS". That maybe you're too sensitive.
You deserve better. You deserve to actually understand what's happening in your body, and to know that there is nothing wrong with you.
Moon Quest is a menstrual cycle app, mood tracker, and period tracker alternative built specifically for people with PMDD, PME, and PMS.
Not a typical period tracker, but a mood forecast powered by your cycle.
WHAT'S REALLY GOING ON
Short daily journeys connect your biology to your lived experience. In plain language, without clinical jargon.
Cycle science doesn't have to be complicated.
Whether you have a PMDD diagnosis, suspect PME (premenstrual exacerbation of anxiety, depression, ADHD, and more), experience severe PMS, or have no label at all, Moon Quest meets you where you are.
YOUR EMOTIONS ARE VALID
Moon Quest's mood tracking and cycle tracking features let you log how you feel each day.
Every mood you log sharpens your personalised emotional forecast, helping you:
• Predict mood changes before your period
• Understand hormonal patterns
• Reduce anxiety linked to your menstrual cycle
Because what you feel has a biological explanation and follows a pattern.
Once you see that pattern, you start to take back control.
CYCLE KNOWLEDGE IS POWER
The Learn library is a free menstrual health resource covering:
• PMDD, PME, PMS
• Premenstrual symptoms
• Menstrual cycle phases
• Hormone and mood changes
Moon Quest gives you the language, the context, and the self-knowledge to ask for the support you need, and to walk into any appointment knowing what to ask for.
We're one of the very few period and mood tracker apps that addresses PME, the cyclical worsening of pre-existing mood conditions during the luteal phase.
SUPPORT WHEN YOU NEED IT
Because PMDD and PME can be serious, support is always easily accessible:
• Global helpline directory
• Breathing exercises
• Grounding tools
YOU'RE IN CONTROL
No streaks. No guilt. No pressure to show up perfectly every cycle.
Moon Points reward curiosity, never compliance.
Moon Quest is not a medical or diagnostic tool. It's a companion for those navigating premenstrual mood disorders, hormone changes, and cycle-related mental health.
You're not broken. You're cyclical.
Terms of Use: https://app.termly.io/policy-viewer/policy.html?policyUUID=57b0d4ec-adb1-42dc-a777-f99b1cc467a6
Privacy Policy: https://www.moonquest.app/privacy-policy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Your period days now show up in Mood history. Days you logged as period days get a soft pink background, so you can see how you felt and where you were in your cycle at a glance. Only the days you logged are highlighted, not predictions.
The developer, Helene Choo, 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 Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- Identifiers
- Usage Data
- Sensitive Info
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Moon Quest
- Size
- 82.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - iPad
Requires iPadOS 16.4 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
16+
- 16+
- Frequent
Medical Treatment information
Infrequent
Profanity or Crude Humor
Mature or Suggestive Themes
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Monthly Premium $3.99
- Yearly Premium $29.99
- Copyright
- © 2026 Moon Quest