It's a shopping list app with reminders compatible with iOS14 home screen widgets.
All features are completely free to use.

Features:
- Unlimited number of folders
- Color folders
- Sort folders
- Display the number of items in the folder list
- Select icon badge display for each folder (number of unchecked items)
- Add items at once (separated by line breaks)
- Check items with one tap
- Automatically move checked items to the bottom
- Batch delete checked items
- Color items
- Move / duplicate items between folders
- Share / copy items
- Sort items (move to top / bottom at once)
- Sort items by color at once
- Check / uncheck all items with one tap
- Due date / notification (alert) settings for items (supports repeated notifications)
- Supports iOS14 home screen widget (folder selectable)
- Icon badge display (number of unchecked items)
- Supports dark mode
- Free & no additional charge
- @icons8.com

URL scheme:
shoppinglist://