The RGraph license ================== RGraph is dual licensed under the Open Source GPL (General Public License) v2.0. If you want to use it under the terms of the GPL then you are free to do so. If you don't wish to be bound by the terms of the GPL then there is a commercial licensing scheme available which you can read about here: http://www.rgraph.net/license For commercial license there is a one-time fee of £99 that covers most use cases. The only exception is for OEM use - the OEM license is described on the website and costs £499. You can read the details about RGraph licensing here: http://www.rgraph.net/license Support ======= Support is available using the support forum: http://www.rgraph.net/forum