
Lunaception
Regulate your cycle naturally
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Archived App (Last seen on 14 May 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
Discover Natural Cycle Regulation with Lunaception
Lunaception helps you regulate your menstrual cycle naturally using the scientifically-backed Lunaception method developed by Louise Lacey in 1975. By controlling your light exposure during sleep, you can work toward a more regular cycle without hormones or medications.
How It Works
The Lunaception method is simple: sleep in complete darkness most nights, and use a dim nightlight during your ovulation window (days 14-16 of your cycle). This mimics the natural light patterns humans experienced before artificial lighting, potentially helping to restore hormonal balance and cycle regularity.
Key Features
- Daily Light Protocol - Clear instructions each evening on whether to sleep in darkness or use a dim light
- Cycle Tracking - Monitor your cycle progress and see where you are each day
- Moon Phase Display - View current moon phases and track alignment with your cycle
- Protocol Adherence - Log whether you followed each night's light protocol
- Interactive Calendar - Mark period days, track adherence, and view your complete cycle history
- Insights Dashboard - See your adherence rate, cycle regularity, and moon alignment over time
- Daily Reminders - Optional evening notifications to remind you of tonight's protocol
- Educational Content - Learn the science and history behind the Lunaception method
Privacy First
Unlike other period trackers, Lunaception prioritizes your privacy:
- All data stored locally on your device
- No account creation required
- Zero data collection or tracking
Perfect For
- Women seeking natural cycle regulation methods
- Those with irregular cycles looking for hormone-free solutions
- Anyone interested in circadian rhythm and light therapy
- People who want a privacy-respecting period tracker
- Those curious about lunar cycle synchronization
The Science
Before electric lighting, women living together often experienced synchronized menstrual cycles that aligned with the moon's phases. Research suggests that light exposure plays a crucial role in regulating reproductive hormones. The Lunaception method recreates the light conditions that may have caused this natural synchronization.
Getting Started
Simply input your last period start date and cycle length during setup, and Lunaception will guide you through the daily light protocol. Track your adherence and watch as your cycle becomes more regular over time.
Note: Lunaception is not a form of birth control and should not be used to prevent pregnancy. Always consult your healthcare provider before making changes to your cycle management approach.
Start your journey toward natural cycle regulation today with Lunaception.
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What's New in Lunaception
1.1
March 4, 2026
Bug fix in notifications





