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.