What are some alternatives?
When comparing WonderWebWare Sitemap Generator and Really Good UX, you can also consider the following products
DYNO Mapper - Create Sitemaps with the DYNO Mapper Visual Sitemap Generator.
FlowMapp - UX planning tool for creating a visual sitemap
GlooMaps - Create your visual sitemap on the go - easy peasy
VisualSitemaps - Autogenerate visual sitemaps in seconds.
XML-Sitemaps.com - Free Online Google Sitemap Generator.
UX Archive Animated - iOS apps animated user flows