TL;DR​

XMind is best for manual mind map creation and visual organization. MindMax is best for AI-assisted exploration and structure development. Choose XMind when you already know the structure and want to organize it neatly. Choose MindMax when you need AI to help generate branches, compare ideas, and develop the map into deeper work.

MindMax and XMind both involve mind maps, but they are not really built around the same kind of work.

XMind is a strong tool when you already know the structure you want and mainly need to organize it neatly by hand. MindMax is more useful when the structure is still emerging and you want AI to help you generate branches, compare ideas, and keep developing the map into deeper work.