Tasrix - Manage your tasks and monitor your productivity
Streaks - The to-do list that helps you form good habits.
Taskwall - Remote teams and Individuals use Taskwall to stay organized with their projects, tasks, and team in a powerful application that adapts to the individual needs.
Taskful - Deadlines, meet your match.
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Week - Task management tool with a heavy focus on planning