Checklist: Simple Smart

Type what you are preparing for and when. A checklist is built from the app's templates, and most items get a do-by date counted back from that day.
When it is over, note what you forgot and what you never used. The next checklist in the same category adds the forgotten items and leaves out the unused ones.
Also: 23 templates, a home screen widget, blank lists, swipe to rename or delete, sharing as text, export and import.

Checklists from one sentence
Type what you are preparing for, such as "Hokkaido, Jan 15, 5 nights, with a 4-year-old". The kind of event, the date, the number of nights and details such as children, winter or a car determine which template sections are included. A sentence with no kind of event and no such details makes an empty list named after it. Sentences in English and Korean both work. The examples on the first screen make a checklist in one tap.

Do-by dates
Most template items are set a number of days before the event, so they get a do-by date. For a move, "Book the mover" is due 30 days before moving day. Routines such as cafe closing have no dates.

Days left and late items
A list in progress shows a progress bar and, if it has a date, the days left. Open items past their date are marked late, and on the Lists tab a list with late items shows how many.

What you missed last time
After a list is marked complete, write down what you forgot and what you never used, one per line. The next checklist in the same category gets a section with the forgotten items and leaves out the unused ones. Use again on a finished list makes a new copy of it with the same changes. Saved lines can be reviewed and removed in Settings.

23 templates
Travel, business trips, moving, a new baby, camping, car camping, home maintenance, car service, a new pet, cafe opening and closing, new hire onboarding, weddings, parties, race day and exams. Search covers template names and the items inside them. Any list can be saved as your own template.

Your own lists
Start a blank list and type the items, or paste several lines into "What are you preparing for?": each line becomes an item, and bullets and numbers are removed. Add sections, reorder items and duplicate a list.

Editing items
Tap to tick. Swipe right to rename an item and left to delete it, with Undo. Long press to change its name, date and note, or to mark it as in progress or skipped.

Home screen widget
The widget shows the first list on the Lists tab, where lists are sorted by date, earliest first: days left, items done and the next items. Archived and finished lists are not shown on the widget. Tap it to open that list.

Share, export and import
Share a list as plain text. Export everything as a file or copy it to the clipboard. Import adds a pasted export to the lists already on the device and deletes nothing.

Privacy
No account, no ads and no analytics. The app does not request internet access. Your lists are stored on your device and never reach us. If the device's backup is on, the backup includes them.

Languages
English and Korean, following the device language. The built-in templates are in both languages.

Support
In Settings, Report a problem opens an email with the app version filled in.

Recent changes:
First release: checklists from one sentence, do-by dates, forgotten items added to the next list, 23 templates and a home screen widget.