한국나이계산기 - 만나이, 생일알림

📌 International Age, Counting Age, Year Age — Don't get confused!

Simply enter your date of birth, and we will calculate all three ages at once.

Check age standards that vary by situation—such as at hospitals, government offices, or for insurance—immediately with just one app.

▶ Key Features

● Age Calculation
- Simultaneous calculation of International Age / Counting Age / Year Age
- Changeable reference date (Past and future dates are OK)

● Family Birthday Management
- Register family members and birthday countdown
- Real-time display of birthday D-Day
- Set advance notifications (Today, 1, 3, or 7 days prior)

● Date Calculator
- D-Day calculation (How many days until a specific date?)
- Calculate the time between two dates
- Calculate dates N days before/after a specific date

● MY (My Profile & D-Day)
- Register your birthday and set notifications
- Register and manage your own D-Days
- Don't miss important days with D-Day notifications

▶ Recommended for:

- "How old am I in International Age?" For those who often get confused

- For those who want to keep track of family and friends' birthdays in advance

- For those who want to manage D-Days for anniversaries, exams, and travel dates all in one place

- For those who frequently need to calculate dates

▶ App Features

- 🎡 Intuitive wheel date picker

- 🔔 Accurate notifications (remain even after device reboot)

- 🎨 Clean Material Design

- 📱 Lightweight and fast execution

Solve age calculations, birthday management, and date calculations all at once with the Korean Age Calculator!