What are some alternatives?
When comparing Helpman and YUNO, 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.
Mozenda - The Mozenda screen scraper provides web data extraction software and data scraping tools that make it easy to capture content from the web
statuspage - A simple self-hosted status page site with an API written in Django under the BSD license.
ProProfs Knowledgebase - ProProfs Knowledge Base is a cutting-edge knowledge management software that assists businesses to create online manuals, guides, documentation, FAQs and more.
Statbot - One-click business & growth analytics for Intercom
Yonyx - Decision tree driven Interactive guides for customer service