디데이 (D-Day)
Everyone
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50+
Downloads
Everyone
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About this app
D-Day is a simple yet powerful app that automatically calculates the D-Day for anniversaries, goal dates, and special occasions.
■ Key Features
▸ Automatic D-Day Calculation
Future dates are automatically displayed as D-23, the current day as D-Day, and past dates as D+500.
▸ Accurate Push Notifications
Receive notifications at your desired date and time, ranging from the current day up to 180 days prior.
You can set up to 10 notifications per D-Day.
Notifications turn on automatically upon new registration, ensuring you don't miss important dates.
▸ Lunar Calendar Support
Displays both Solar and Lunar dates simultaneously.
Lunar anniversaries (Lunar New Year, Chuseok, birthdays, etc.) are automatically converted to the Solar calendar.
▸ Easy Re-registration
Quickly re-register past anniversaries for 1 week, 1 month, or 1 to 3 years in advance.
You can also set the date manually.
Re-registration is possible immediately on the actual D-Day.
▸ Personalize with Emojis
Decorate each D-Day with 64 different emojis. You can create aesthetically pleasing D-Day lists that are easily distinguishable at a glance.
▸ Sort Function
Sort by nearest or newest to quickly find the D-Days you want.
■ Recommended for:
- Those who frequently forget birthdays or anniversaries
- Those who want to manage target dates such as exams, interviews, or trips
- Those who do not want to miss lunar anniversaries (parents' birthdays, etc.)
- Those looking for a simple, ad-free D-Day app
■ App Features
- Completely free, no ads
- Works offline (no internet required)
- Lightweight and fast execution
- Purple aesthetic design
■ Key Features
▸ Automatic D-Day Calculation
Future dates are automatically displayed as D-23, the current day as D-Day, and past dates as D+500.
▸ Accurate Push Notifications
Receive notifications at your desired date and time, ranging from the current day up to 180 days prior.
You can set up to 10 notifications per D-Day.
Notifications turn on automatically upon new registration, ensuring you don't miss important dates.
▸ Lunar Calendar Support
Displays both Solar and Lunar dates simultaneously.
Lunar anniversaries (Lunar New Year, Chuseok, birthdays, etc.) are automatically converted to the Solar calendar.
▸ Easy Re-registration
Quickly re-register past anniversaries for 1 week, 1 month, or 1 to 3 years in advance.
You can also set the date manually.
Re-registration is possible immediately on the actual D-Day.
▸ Personalize with Emojis
Decorate each D-Day with 64 different emojis. You can create aesthetically pleasing D-Day lists that are easily distinguishable at a glance.
▸ Sort Function
Sort by nearest or newest to quickly find the D-Days you want.
■ Recommended for:
- Those who frequently forget birthdays or anniversaries
- Those who want to manage target dates such as exams, interviews, or trips
- Those who do not want to miss lunar anniversaries (parents' birthdays, etc.)
- Those looking for a simple, ad-free D-Day app
■ App Features
- Completely free, no ads
- Works offline (no internet required)
- Lightweight and fast execution
- Purple aesthetic design
Updated on
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No data shared with third parties
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No data collected
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What’s new
- Refined visual design with cleaner cards
- Pretendard font for sharper Korean text
- "Add your first D-Day" CTA on empty state
- Summary line on home: nearest upcoming event
- Fixed widget display issues on some devices
- Widget now auto-refreshes past midnight
