Happy Tools by Automattic - A scheduling tool built for distributed teams
Taskade - Make lists, organize your thoughts, and be inspired to get things done. Taskade is a collaborative space for your tasks.
Checklist Generator - Create checklists for free and host them wherever you want.
Tatsu - Standup meetings for remote teams.
Visual Designer Checklist - Workflow checklist tool for designers working within a team
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.