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About this app

🌙 Luna Day - Smart Menstrual Cycle Management for Me

Manage your monthly cycle smartly with Luna Day.

It automatically calculates your expected period date, ovulation date, and fertile period, and allows you to check today's hormonal changes and condition at a glance.

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✅ Key Features

📅 Smart Calendar

• Automatically predict your next cycle just by entering your period start date

• Check your period, ovulation date, and fertile period at a glance on the calendar

• Automatically calculate D-day until your next period

🔬 Hormonal Change Analysis

• Displays estrogen, progesterone, and LH hormone levels

• Guides to changes in energy, mood, and creativity by cycle

• Scientifically understand your body's condition

🤖 AI Condition Analysis

• AI provides a personalized analysis of your condition today

• Provides tips for mood, dating, diet, energy, and exercise

• Recommends lifestyle guides tailored to your cycle stage

📊 Cycle Statistics

• Check your cycle trends with data

• Analyze symptom patterns and track mood changes

🔔 Personalized Notifications

• Advance notifications for your expected period and ovulation

• Smart push notifications you won't miss

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💡 Recommended for:

• Those who want to manage their menstrual cycle systematically

• Those who want to understand their condition in relation to hormonal changes

• Those who want to identify their ovulation date for pregnancy planning or contraception

• Those who want to receive notifications every month so they never forget their D-day

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🌷 The Uniqueness of Luna Day

✨ Clean and Intuitive UI

✨ Science-Based Hormone Information

✨ AI Personalized Analysis

✨ Completely Free

📱 Install Luna Day right now and start managing your cycle smartly!

Inquiries: lasjk7@gmail.com
Updated on
Apr 21, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
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About the developer
이병창
lasjk7@gmail.com
서울특별시 관악구 남부순환로 164길 9, 202호 (신림동) 202호 관악구, 서울특별시 08773 South Korea

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