Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Magic - Get whatever you want on demand with no hassle, through SMS
Doit.im - Doit.
June.ai - A communication hub that replaces email
Remember The Milk - Remember The Milk is a task and time management application for mobile devices.
Clarke.ai - AI powered assistant that dials into calls and takes notes