How many days to go? Counts down to your plans and anniversaries.

Everything about AtoDays

Calendar integration means nothing to type in — check from a widget or the Lock Screen anytime.

See the days at a glance

Automatic countdown to any date

Stay informed with custom notifications

Organise events with tags and filter by tag

Nothing to type in

One-tap event import from your Calendar

Display Calendar events as countdowns automatically

One-tap update to the next date with repeat settings

Repeats like "every 3 days", "2nd Tuesday", or "last day of the month", and moving weekend or holiday dates to the previous or next weekday

Widgets and the Lock Screen

Home & Lock Screen widgets for instant tracking

Filter the events a widget shows by tag or time period

On iPhone with iOS27 or later, a tall widget that fills a full Home Screen page shows up to 9 countdowns

iPad and Apple Watch

Check days left right from your wrist with Apple Watch

An easy-to-read layout optimised for the large iPad screen

Secure data backup via iCloud

Good for

Counting down to birthdays and anniversaries

Tracking holidays, concerts, or game releases

Managing deadlines for exams, certifications, and work projects

What Pro adds

Ad-free experience

Unlimited event tracking

Countdown Premium widget (always show a selected event)

Direct Calendar sync for real-time countdowns

Calendar Premium widget (shows your calendar events as countdowns, soonest first)