Todoist

Todoist is an online web-based task management application developed by the Doist company. It allows users to manage their tasks from smartphone, tablet and computer devices. Todoist helps to keep track of all tasks, projects, and goals in one beautifully simple place, and syncs across all devices. With Todoist Karma one can track productivity and visualize achievement trends over time. It is available on 10+ platforms including Android, iOS, OS X, Windows, Google Chrome, and Outlook.