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
GNOME Planner is more focused on project planning with robust Gantt chart features, making it suitable for detailed project management. In contrast, Redbooth emphasizes collaboration and task management, making it ideal for teams that require communication and tracking in a single platform.