What are some alternatives?
When comparing PowerMapper and SEO Crawler, you can also consider the following products
DYNO Mapper - Create Sitemaps with the DYNO Mapper Visual Sitemap Generator.
Screaming Frog SEO Spider - The Screaming Frog SEO Spider is a small desktop program (PC or Mac) which crawls websites’ links...
A1 Sitemap Generator - A1 Sitemap Generator has been in active development and sold since 2005.
Pulno - SEO Audit and Website Analysis. Pull up your SEO.
GlooMaps - Create your visual sitemap on the go - easy peasy
Netpeak Spider - A desktop tool for fast and comprehensive technical audit of the entire website.