What are some alternatives?
When comparing GlooMaps and A1 Sitemap Generator, you can also consider the following products
WonderWebWare Sitemap Generator - Sitemap Generator is freeware program that will help you to automatically generate site maps for google, bing and yahoo in their respective file formats.
DYNO Mapper - Create Sitemaps with the DYNO Mapper Visual Sitemap Generator.
XML-Sitemaps.com - Free Online Google Sitemap Generator.
FlowMapp - UX planning tool for creating a visual sitemap
Screaming Frog SEO Spider - The Screaming Frog SEO Spider is a small desktop program (PC or Mac) which crawls websites’ links...
SEO Magnifier - SEO Magnifier an online free seo tools platform for the webmasters. Paraphrasing tool, plagiarism checker and character counter are featured seo tools.