What are some alternatives?
When comparing FlowMapp and Screaming Frog SEO Spider, you can also consider the following products
Really Good UX - A library of screenshots for UX inspiration
Netpeak Spider - A desktop tool for fast and comprehensive technical audit of the entire website.
VisualSitemaps - Autogenerate visual sitemaps in seconds.
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
DYNO Mapper - Create Sitemaps with the DYNO Mapper Visual Sitemap Generator.
SEO Crawler - A web-based crawler with real-time crawl feedback.