Licence Agreement

Klass and every other extension published by Teragen Technologies Limited are licensed under the GNU General Public License, version 2 or later.

You may install Teragen extensions on any number of sites, including sites you build for clients. The extensions contain no licence key and no encoded code, and they work fully once installed.

A purchase of Klass costs $250 and includes one year of downloads, updates and support for the account holder. After the first year, support renewal costs $50 every six months and keeps access to updates. If support and updates end, you keep the right to use the version you have installed; downloads, updates and support resume when you renew. Critical security fixes are published on the changelog.