Features
A calculator for every date question, built to work without a network connection.
Difference
Compare two dates in days, weeks + days, years + months + days, or as a percentage of the year — the view you pick is remembered. An "include first day" toggle covers the edge case that trips up manual counting, and the last ~30 calculations are saved for one-tap recall.
Date ±
Add or subtract days, weeks, months, or years from a date, with a "working days only" option that respects your custom weekend filter and holiday list.
Working days & holidays
Offline holiday data for 18 countries (PL, BY, RU, UA, DE, US, UK, FR, IT, ES, CZ, SK, LT, LV, EE, NL, AT, CH), a custom weekend-day filter for schedules that don't follow Sat/Sun, and an editor to disable built-in holidays or add your own one-off or yearly ones.
Events
Create birthdays, deadlines, and other dated events with an emoji or color, a live countdown in days/weeks/hours/minutes, local reminders (1/3/7 days before, or your own), and a shareable countdown image.
Age
Exact age down to the day, your birth weekday, days remaining until your next birthday, and a one-tap "save as birthday" that creates a recurring event.
Widgets
Three configurable Android home-screen widgets: Countdown (1×1 to 2×2), List (2×1 to 4×2, filterable and sortable), and Actions (2×1 to 4×1, shortcuts to specific screens). Each instance is configured when added and updates daily.