What are some alternatives?
When comparing FlowMapp and Really Good UX, you can also consider the following products
VisualSitemaps - Autogenerate visual sitemaps in seconds.
DYNO Mapper - Create Sitemaps with the DYNO Mapper Visual Sitemap Generator.
UX Archive Animated - iOS apps animated user flows
UX Recipe for iOS - Design checklist & estimation tool for your next UX project
UX Project Checklist - The UX Design Process From A to Z
Page Flows - User flow design inspiration for mobile & desktop