Yes, both Tettra and ProProfs Knowledge Base offer a Free Trial.
Tettra is designed for Large Enterprises, Medium Business and Small Business.
ProProfs Knowledge Base is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Tettra Starts at $8.33/User/Month when Billed Yearly whereas for ProProfs Knowledge Base Starts at $0.30/Month when Billed Yearly.
Some top alternatives to Tettra includes Zoho Wiki, KBPublisher, Drupal Wiki, TWiki, KnowledgeBase Manager Pro, Omnistar Kbase, Talisma KnowledgeBase, KnowledgeOwl, KnowledgeBase and ProProfs Knowledge Base.
Some top alternatives to ProProfs Knowledge Base includes KBPublisher, SmartSupport, Talisma KnowledgeBase, HelpHub, KnowledgeOwl, Qualified, Workvivo, PaceKB, KnowledgeBase, Whatis, IFTTT and StructHub.
