Focuster - Ditch your todo list for an intelligent scheduler

Solid - Solid is a solution for online business meetings.

Todoist - Todoist is a to-do list that helps you get organized, at work and in life.

Meetingbird - Powerful meeting scheduling and notes — right in your calendar

Taskbook - Like Trello but for the Terminal

Mobilimeet - Mobilimeet is a smart collaboration app that makes meeting participants engaged and productive, in every meeting.