What are some alternatives?
When comparing Helpman and ScreenSteps, you can also consider the following products
Tenfold - Tenfold is a mobile game that is designed primarily to be played by iPhone users. The game is available on the app store. The tagline of the game is "twenty seven numbers, endless puzzles. Read more about Tenfold.
Bloomfire - Let Bloomfire help you get organized! Organize your content, build your company knowledge base and help your employees to be more successful.
statuspage - A simple self-hosted status page site with an API written in Django under the BSD license.
Dozuki - Dozuki is a web-based tool for creating and distributing step-by-step documentation.
YUNO - YUNO is a web data driven company focussed on solving customer challenges in web data discovery and extraction space.
REWO - REWO is a knowledge documentation and distribution solution, which drastically improves capturing, visualizing and communicating knowledge.