Download of Check Off - A GTD Task manager application that syncs with Dropbox 5.0 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this Mac application is com.chromedomesoftware.
The software lies within Productivity Tools, more precisely Timekeeping. We recommend checking the downloaded files with any free antivirus. This program's bundle is identified as com.chromedomesoftware.checkoff. Some of the software aliases include "Check Off 5". The most popular version among the application users is 5.0.
From the developer:
CheckOff is a to-do application that can use DropBox or similar services to synchronize data between your Mac OS computers.
The venerable to-do application arrives at it's new home at ChromeDome Software from Second Gear Software to the app store with new features and bug fixes!
Check Off is a task management application that allows you to organize your tasks.
You may want to check out more Mac applications, such as Organize:Me Personal Task Manager and To-Do Planner, Snail - Time and Task Manager or Total Schedule Monitor - Easy Task Manager, which might be related to Check Off - A GTD Task manager application that syncs with Dropbox.