Countdown Widget: Days Until

Countdown Widget counts the days until — and since — the moments that matter: birthdays, weddings, Tết, exams, trips, anniversaries. Home-screen widgets show the right number every morning. Your events stay on your phone. No ads, no account.

UNLIMITED EVENTS

Add as many countdowns as you want. The app puts no cap on the number of events you can create.

VIETNAMESE LUNAR CALENDAR BUILT IN

✓ Create events on the lunar calendar — Tết (Lunar New Year), death anniversaries (ngày giỗ), lunar birthdays, Mid-Autumn Festival — and the app converts them to the correct solar date every year, automatically

✓ Astronomical algorithm (Ho Ngoc Duc), accurate from 1900 to 2100, fully offline

✓ Detail screen shows both calendars side by side, plus the can-chi (sexagenary) year name

✓ Built-in suggestions: Tết (1/1 lunar), Mid-Autumn (15/8 lunar), Hung Kings Day (10/3 lunar), National Day 2/9, Christmas, New Year

WIDGETS THAT STAY UP TO DATE

The widgets use three independent layers so the number rolls over when the day does: a midnight alarm re-armed after every update, a periodic refresh run by Android itself as a safety net, and a live per-second countdown in the final 48 hours. The app also listens for reboot, date change, time set and timezone change. The midnight alarm is a battery-friendly one, so on a phone in deep sleep the flip can land a few minutes after 00:00 rather than on the dot — we would rather be a few minutes late than drain your battery or ask for a restricted alarm permission.

✓ 2x2 single-event widget — big day count, event name, emoji and date

✓ 4x2 list widget — your upcoming events at a glance

✓ Per-widget configuration: choose the event, theme, text size and background transparency for each widget instance

MORE FEATURES

✓ Days until / days since / "Today!"

✓ Repeat none, yearly or monthly — on the solar or the lunar calendar

✓ D-day and D-7 reminder notifications

✓ Emoji and accent color per event, pin favorites, share as text

✓ Dark mode

PRO FEATURES

★ 6 widget themes: Dark, plus Light, Transparent, Sunset, Ocean and Pink

★ Photo background per event with a soft blur — photos are stored privately inside the app, never uploaded

★ Backup and restore all events to a JSON file you own

★ 4-digit passcode lock

★ Count down to an exact hour and minute, not just the day

PRIVATE BY DESIGN

Your event names, notes and dates never leave your phone — they are stored only in the app's private database. The app has no account and no ads, and the advertising ID permission is stripped from the build. It does send anonymous usage counts and crash reports (Firebase) so we can fix bugs; that never includes the text you type, and you can switch it off in Settings → Privacy. Notification permission is used solely to remind you of your own events.