Todoist
Freemium
Todoist: To-Do list and Task Manager.
Task Coach
Open Source
A simple and friendly task manager written in Python.
Org-mode
Open Source
Org-mode is an Emacs Mode for Notes, Planning, and Authoring.
Tasque
Open Source
Tasque is an open source task management application.
ToDoList
Open Source
ToDoList is a jack-of-all-trades organizer software that goes far beyond managing shopping lists. The tool allows to create short and precise task list.
Ora
Commercial
Ora is a real-time all-in-one workspace for teams.
Todo.txt
Open Source
todo.txt is software and operating system agnostic; it's searchable, portable, lightweight and easily Todo management software.
