What are some alternatives?
When comparing GlooMaps 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
XML-Sitemaps.com - Free Online Google Sitemap Generator.
VisualSitemaps - Autogenerate visual sitemaps in seconds.
A1 Sitemap Generator - A1 Sitemap Generator has been in active development and sold since 2005.
UX Archive Animated - iOS apps animated user flows