We built the different tiers for different user groups:
"Hobby" could be used by anyone who wants to document something (You could "install" Opus.Guide on your phone and use it as an elaborate note-taking tool on the go or use our chrome extension to record a guide for your father to show him where to change language settings for his computer). "Essential" is for the professional with a need to share knowledge regularly whereas "Professional" is typically used by larger teams or managers who regularly onboard new team-members.