SimpleMind is described as 'Mind mapping helps you organize your thoughts, remember information and generate new ideas. We've created a beautiful, intuitive app, so you can mind map wherever you are and whenever you want' and is a Mind Mapping tool in the office & productivity category. There are more than 50 alternatives to SimpleMind for a variety of platforms, including Windows, Mac, Web-based, iPhone and iPad apps. The best SimpleMind alternative is TreeSheets, which is both free and Open Source. Other great apps like SimpleMind are Xmind, FreeMind, Freeplane and Obsidian Canvas.