Varbase is available as an open source and FREE software for developers and development teams to install, host and run it yourself.
Open Source software is free and promotes the collaboration and sharing of ideas. Varbase is built on Drupal which is Open Source and is completely free. Everyone should contribute something, sometimes simply reporting and maybe fixing a minor bug can make a difference. The Drupal community and the marketplace make money supporting Drupal. If you need a feature or support you should contact the Varbase maintainer.
Varbase provides a great deal of functionality out of the box, which makes it possible for you to prototype your knowledge base, and try out and experiment all the available features.
However, if you need professional support for implementation, customization, training, or hosted management, please contact Vardot at https://www.vardot.com/contact