Yes, both Berkeley Publisher and Kbee offer a Free Trial.
Berkeley Publisher is designed for Large Enterprises, Medium Business and Small Business.
Kbee is designed for Medium Business and Small Business.
The starting price of Kbee begins at $19/Month, while pricing details for Berkeley Publisher are unavailable.
Some top alternatives to Berkeley Publisher includes WeWeb, simplewiki, GitBook, Drupal Wiki, TWiki, Wiki Valley, Microsoft Azure, HintEd, Kbee and ProProfs Knowledge Base.
Some top alternatives to Kbee includes GitBook, Drupal Wiki, Wiki Valley, GoGoWorx, Qualified, Workvivo, Circular Docs, Storydoc, Slick, You Need A Wiki and IFTTT.