D-Day Counter · Days Until

How many days are left until the moments that matter? With D-Day Counter, add your anniversaries, exams, trips, and birthdays, then see the remaining days at a glance.

No complicated setup — just enter a title and a date. Your most imminent D-Day is highlighted at the top of the home screen as a large countdown, so you see it the moment you open the app.

▶ Quick D-Day entry

• Add title, target date, category, and memo in one place
• Sort by nearest / farthest / date added
• Automatic "D-day" math — "D+n" for past days, "D-n" for upcoming
• Pin a favorite — shown as a large countdown card at the top

▶ Repeating D-Days

• Yearly — for birthdays and anniversaries that come around every year
• Monthly — for paydays and recurring schedules
• Next occurrence calculated automatically (rolls over once a date passes)

▶ Categories

Anniversary · Birthday · Exam · Travel · Wedding · Holiday · Other

▶ Statistics at a glance

• Summary of total / upcoming / past D-Days
• Your closest D-Day highlighted
• Upcoming TOP 5
• Category breakdown

▶ Convenient by design

• No sign-up or login — start right after install
• Dark / Light theme
• Korean / English (date format switches automatically)
• No personal data collected — everything stays on your device

From exam countdowns to your 100-day and 1-year couple milestones, to the trip you can't wait for — manage every important moment with a single D-Day Counter.