Yes, both Green Pen and ProProfs Knowledge Base offer a Free Trial.
Green Pen is designed for Large Enterprises, Medium Business and Small Business.
ProProfs Knowledge Base is designed for Large Enterprises, Medium Business and Small Business.
The starting price of ProProfs Knowledge Base begins at $0.30/Month when Billed Yearly, while pricing details for Green Pen are unavailable.
Some top alternatives to Green Pen includes Red Pen, SmartSupport, SABIO, KnowledgeAQ, Qualified, Richdesk, Workvivo, KnowledgeBase, Whatis, Typed, ProProfs Knowledge Base and IFTTT.
Some top alternatives to ProProfs Knowledge Base includes KBPublisher, SmartSupport, Talisma KnowledgeBase, HelpHub, KnowledgeOwl, Qualified, Workvivo, PaceKB, KnowledgeBase, Whatis, IFTTT and StructHub.
