Yes, both Proceed.app and GoGoWorx offer a Free Trial.
Proceed.app is designed for Individuals, Large Enterprises, Medium Business and Small Business.
GoGoWorx is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Proceed.app Starts at $39/Month whereas for GoGoWorx Starts at $5/User/Month.
Some top alternatives to Proceed.app includes Synapse, Guru, Zoho Wiki, LearnLode Enterprise, TWiki, GoGoWorx, HuForce, XWiki, Zoho Learn and bundleIQ.
Some top alternatives to GoGoWorx includes Zoho Wiki, SmartSupport, Drupal Wiki, Eniston, TWiki, Wiki Valley, Microsoft Azure, KnowledgeOwl, KnowledgeBase and ProProfs Knowledge Base.