Taskwarrior - Taskwarrior is an ambitious project bringing sophisticated capabilities to a simple and elegant...
Taskbook - Like Trello but for the Terminal
SSuite Sticky To Do - SSuite's Sticky To Do app gives you an easy way to track your tasks and organize your day.
Todour - Todour is an application for handling todo.
Calcurse - Calcurse is a calendar and scheduling application for the command line.
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.