D-Day Counter · Days Until

Exams, a trip, an anniversary, the day someone comes home — how many days left?
D-Day Counter counts both the days remaining and the days that have passed, on one screen.

■ Count down, or count up
· Countdown (D-30) and count-up (Day 1) side by side
· "Include today" option, the way exam countdowns are traditionally counted
· Weeks and months as a second line (D-100 = 14 weeks 2 days)
· Milestone notes for day 100, day 1000 and more

■ Home screen widget
· See your D-Day without opening the app
· The widget does its own maths, so it is right every midnight

■ Lunar anniversaries
· Lunar birthdays and memorial days roll over correctly every year
· Built-in lunar calendar engine with leap months (1901-2100)

■ Reminders
· D-7 · D-3 · D-1 · on the day — pick only the slots you want
· Set the reminder time, switch reminders per item
· A morning summary: "today's D-Days"

■ Calendar and statistics
· A monthly calendar with a dot on every day you saved
· Totals, upcoming vs past, the closest D-Day, upcoming top 5, category share

■ Tidy up without losing anything
· Trash — restore what you deleted, auto-empty after 7/30/90/180 days
· Backup and restore in a single JSON file, plus a weekly auto-backup
· Multi-select delete, bulk category change, drag to reorder

■ Make it yours
· 60 icons, 12 colours and categories per item
· Pin a favourite D-Day as a large card at the top
· Share as a picture card
· Light / dark / system theme
· 10 languages

■ Privacy
· No sign-up. Every D-Day stays on your device
· Nothing is uploaded to a server

The app is free with a banner ad, and a few cosmetic extras can be opened with a rewarded ad. If no ad is available, the feature opens anyway.

Contact: tk32189@naver.com

Recent changes:
v2.3.0

- Brand-new app icon — a calendar, a heart and a clock, all in one mark
- The launch (splash) screen now matches the new icon
- Themed icons on Android 13+ — the icon follows your wallpaper colors
- Fixed the app name showing in English on Indonesian devices
- Privacy policy and open-source license notices brought up to date