Guide is an application that allows you create documents ("guides") which inherently have a tree (which you can modify as you please) and text associated with each node of the tree. Developed by Mahadevan R
License: Open Source
The Guide is more user-friendly with a focus on multimedia and collaboration, making it ideal for smaller teams and simpler projects. In contrast, ThinkComposer offers powerful visual mapping and advanced analysis tools, making it better suited for complex project management and larger teams.