What are some alternatives?
When comparing FlowMapp and Cofolios, you can also consider the following products
Really Good UX - A library of screenshots for UX inspiration
Design Principles - An open source repository of design principles and methods
VisualSitemaps - Autogenerate visual sitemaps in seconds.
Facebook Design Resources - A collection of free resources made by designers at Facebook
DYNO Mapper - Create Sitemaps with the DYNO Mapper Visual Sitemap Generator.
Atlassian Design - Design, develop, and deliver