VES may be used to develop and distribute open source and closed source applications and libraries. VES is licensed with the Apache License Version 2.0. VES library dependencies are VTK and Eigen. VTK is licensed with the BSD license. Eigen is licensed with the MPL 2.0 license. Some versions of the KiwiViewer application and source code require additional dependencies and licenses, please visit the KiwiViewer Attributions page for a complete list.