Yes, both Outline and ProProfs Knowledge Base offer a Free Trial.
Outline is designed for Large Enterprises, Small Business, Medium Business and Individuals.
ProProfs Knowledge Base is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Outline Starts at $15.00per month when Billed Yearly whereas for ProProfs Knowledge Base Starts at $0.30/Month when Billed Yearly.
Some top alternatives to Outline includes simplewiki, GitBook, Zoho Wiki, Drupal Wiki, TWiki, Wiki Valley, HuForce, KnowledgeBase, ProProfs Knowledge Base and Team Wiki.
Some top alternatives to ProProfs Knowledge Base includes KBPublisher, SmartSupport, Talisma KnowledgeBase, HelpHub, KnowledgeOwl, Qualified, Workvivo, PaceKB, KnowledgeBase, Whatis, IFTTT and StructHub.
