It's a d-day countdown app compatible with iOS14 home screen widgets.
All features are completely free to use.

- Quick start
- Unlimited number of event registrations
- Can be divided into folders
- Repeat date setting and notification
- Specifying the count format
- Timer display
- Specify background color and text color
- Specify background image
- Specify character style and placement
- Share to SNS with screenshots
- Date, time, date and time difference calculator
- Date, time, date and time addition, subtraction
- Save the calculation result to bookmark
- Supports iOS 14 home screen widget
- Dark mode support
- Completely free, no additional charge

How many days until then?
How many days since then?

URL scheme:
countdown://