: Adobe has moved to a subscription-based model. When you subscribe, you receive the most current version of the software, and updates are included as part of the plan.
Adobe RoboHelp is a professional, paid software product and is not available for free as a full version.
: Create bite-sized content snippets for chatbots and search engine results.
RoboHelp enables you to easily author immersive help content and publish it across customer touchpoints. Adobe RoboHelp - Buying Guide
: Author once and publish to various formats including Responsive HTML5, PDF, Microsoft Help (CHM), and mobile apps.