Nozbe

Nozbe is a system that helps effective teams get tasks and projects done, and provides dedicated apps for Mac, Windows, Linux, and mobile devices. With Nozbe, the users can manage team tasks in shared project lists, collaborate with guest users, organize tasks with color-coded categories with icons, view tasks on a calendar, create project templates to start new tasks easily, and make use of Google Calendar sync and Dropbox, Box, Google Drive, and Evernote attachment support.