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Apple Reminders is the to-do and reminder app built into Apple devices, which you can use to keep track of things to do, buy, and watch. It supports lists, subtasks, tags, smart lists, sharing, and grocery lists.

Obsidian Tasks is a task management plugin for Obsidian that tracks tasks across your entire vault. You can query tasks from anywhere and mark them as done, and any status changes are written back to the source file.

kaufkauflist

A to-do list web app for shopping or other use cases