GNOME Planner is a cross-platform project management tool based on the Work breakdown structure (WBS). Developed by Richard Hult and Mikael Hallendal, Imendio
License: Open Source
Huddle is designed primarily for real-time collaboration and task management, making it suitable for teams working on dynamic projects. In contrast, GNOME Planner focuses on project planning and scheduling, offering robust features like Gantt charts and resource management, which may suit more structured project workflows.