What are some alternatives?
When comparing Rarchy and SlickPlan, you can also consider the following products
FlowMapp - UX planning tool for creating a visual sitemap
Invision - Prototyping and collaboration for design teams
DYNO Mapper - Create Sitemaps with the DYNO Mapper Visual Sitemap Generator.
Webflow - Build dynamic, responsive websites in your browser. Launch with a click. Or export your squeaky-clean code to host wherever you'd like. Discover the professional website builder made for designers.
VisualSitemaps - Autogenerate visual sitemaps in seconds.
Balsamiq - Balsamiq. Rapid, effective and fun wireframing software.