Shopify
Yes, both KBPublisher and Guru offer a Free Trial.
KBPublisher is designed for Large Enterprises, Medium Business and Small Business.
Guru is designed for Large Enterprises, Medium Business and Small Business.
Pricing for KBPublisher Starts at $19/Month when Billed Yearly whereas for Guru Starts at $14/User/Month when Billed Yearly.
Some top alternatives to KBPublisher includes Zoho Wiki, SmartSupport, KnowledgeBase Manager Pro, Omnistar Kbase, Talisma KnowledgeBase, IntelligenceBank KM, Microsoft Azure, KnowledgeOwl, KnowledgeBase and ProProfs Knowledge Base.
Some top alternatives to Guru includes GitBook, Zoho Wiki, KBPublisher, Drupal Wiki, LearnLode Enterprise, TWiki, Wiki Valley, GoGoWorx, HuForce and ProProfs Knowledge Base.