Comparing to XMind 8, XMind ZEN does not contain some professional features like audio notes, Gantt Chart, slide-based presentation and brainstorming（ However, we do have a plan to implement them in the future, also use ‘Snowbrush’).
For now, if you are a heavy user of these features, then XMind 8 is all you need. If not, and a passion for making beautiful mind maps you have, then XMind ZEN is strongly recommended.
With a more powerful graphics engine, the graphical performance in XMind ZEN is greatly enhanced. Also, with the same powerful engine, you can enjoy the same mind map experience on your iPhone/iPad, which will bring a better user experience. Also XMind ZEN is 100% compatible with XMind 8.