What are some alternatives?
When comparing Pangolin and MindManager, you can also consider the following products
InSite Feedback - InSite Feedback provides instant feedback and reviews of your website.
XMind - XMind is a brainstorming and mind mapping application.
UserSnap - Usersnap Track is your central place to organize user feedback and collect bug reports. One screenshot is all it takes. Get rid of endless email exchanges and coffee-stained sticky notes. Your new life is awaiting you!
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Webscope - Get live website feedback from your clients
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.