What are some alternatives?
When comparing Calligra Plan and FoxPlan, you can also consider the following products
GanttProject - Project scheduling and management tool
Microsoft Project - Microsoft Office Project gives you robust project management tools with the right blend of...
Taskjuggler - TaskJuggler is a modern and powerful, Free and Open Source Software project management tool.
Smartsheet - Smartsheet is an intuitive online project management tool enabling teams to increase productivity using cloud, collaboration, & mobile technologies.
GNOME Planner - Planner is the GNOME project management tool licensed under the GPLv2.
Basecamp - A simple and elegant project management system.