Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Focuster - Ditch your todo list for an intelligent scheduler
Todo - Todo is a to-do and task list app.
ToDoList - Windows desktop application to stay on top of your daily tasks.
Taskbook - Like Trello but for the Terminal
Tactical Time Blocker - Daily highlights & adaptive time blocking template