Workflowy - A better way to organize your mind.
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
ABBYY Business Card Reader - Scan cards ≡ in a second and manage them everywhere ☁
Any.DO - The #1 task management app used by over 11 million people globally, Any.do is your free mobile and online task manager for Android, iPhone, Web and more.
Flow-e - Turn your Gmail or Office365 inbox to a Visual Task Board.
Microsoft To-Do - Task management tool