Count the days at a glance

D-day widgets · Age · Business days

Coming soon · Android

Start date

End date

Count start date

D-day home screen widgetsThey update by themselves when the date changes. Home screen widgets are free.
D-day and anniversariesAnniversaries every 100 days or every year, plus D-day reminders.
AgeSee whether this year's birthday has passed and the days to the next one.
Business daysWeekends and public holidays are skipped. Holidays for 220+ countries and regions are built in.