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 an open-source project management tool focused on planning and scheduling with a user-friendly interface, while Active Collab offers a more comprehensive project management solution with collaboration features and time tracking, making it suitable for teams.