Wunderlistux - An electron wrapper for wunderlist made with love for Linux (specially for elementary OS)
Xibo - Digital Signage for Everyone!
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Yodeck - Yodeck enables you to design and schedule your digital signage on Raspberry Pi easily from the web, using your computer, tablet or smartphone.
Mirakel - An easy to use and lightweight To-Do App.
TelemetryTV - Powerful and Intuitive Cloud-Based Digital Signage Software That Lets You Easily Manage Content on Screens