Dday Planner-Countdown Timer

The easiest way to count the days that matter - Dday Planner.
From anniversaries and project deadlines to food expiry dates, trackanything as a D-Day, and handle alarms, routines, timers and daily schedules - all in one app.

■ D-Day
- Organize by category: Anniversary, Personal, Food, and more
- Solar & lunar dates, with yearly, monthly repeats
- Automatic day counting, category filters & sorting
· Track food expiry dates so you never miss a use-by

■ Smart Alarms
- Repeat once, daily, weekdays, weekends, or specific days of the week
- Vibration and a choice of alarm sounds
- Simple on/off toggles

■ Routines
- Build repeatable, multi-step timer routines
- Morning routine, Pomodoro (focus), workout intervals, study focus
- Per-step duration, sound and vibration

■ Timer & Stopwatch
- Quick presets : 1 min, 10 min, 30 min, 1 hour
- Custom timers, background execution
- Built-in stopwatch

■ Schedule
- Plan your day like a timetable on a clean timeline
- Repeat patterns: weekdays, weekends, weekly, specific dates
- Priority rules to resolve overlapping schedules

■ Home Screen Widgets
- See upcoming D-Days and today's schedule right from your home screen
- Full light, dark mode support

■ More
- 10 languages supported (English, Korean, Japanese, Chinese, and more)
- Fast and private - stored locally on your device
- Clean, ad-free iOS-style design

Start planning the days that matter with Dday Planner today.