There are two license types available with RGraph - a free one for non-commercial entities and a non-free commercial use license. Each is described below.
A overview of the licensing is that for commercial use there is a one-time licensing fee of £79 (GBP) whilst for non-commercial use (eg personal, government, charity, educational etc) it's free to use assuming that you link to www.rgraph.net on your website.
Commercial usage covers commercial entities for their websites (either internal or external) or in software that they produce. If your organisation generates profit then a commercial license is most appropriate. There are some FAQs below that should help to answer any questions that you may have, but if they don't then you can email your question to: support@rgraph.net
After completion of either Google Checkout or Paypal payment you are granted an RGraph commercial license. You will be sent the license details via email.
Example uses are:
Do I need to buy a commercial license?
For commercial/business use, then yes - you need a license to use RGraph.
How much is a license?
A license is a fee of £79 (UK pounds). That's a little over $120 (US dollars) at
the time of writing.
What if I need something that's not part of RGraph?
If there's a feature that you need that's not part of RGraph then I can usually accommodate you assuming that
you're a license holder. Please contact support first to discuss your needs. If it's not too specific to you then
I can add it to the main RGraph software. If it is then I can add it to your specific copy of RGraph. You can
contact support with support@rgraph.net
What does the license cover?
The RGraph license covers RGraph as a whole. Excepting ExCanvas, all code that you find in the RGraph archive is
covered by the RGraph license.
What if I'm a web designer?
In this situation each client would need a separate license for themselves. They can then use RGraph as much as they wish.
If you prefer to buy in bulk - discounts are available (see next question).
Is there a discount for buying licenses in bulk?
Yes there's a discount available if you wish to buy 5, 10 or 15 licenses (you could be a web designer for example
wishing to license your clients). Please contact support if this interests you.
Do I need to provide a backlink?
Commercial license holders do not need to provide a backlink to the RGraph website.
Can you send me an invoice?
Of course, simply go here: http://www.rgraph.net/invoice.html, enter your email
address and you'll be sent an invoice that you can use for tax purposes.
RGraph can be used free-of-charge by non-commercial entities who wish to use it either on an internal or external website or in software that they make. Examples of non-commercial entities include:
<a href="http://www.rgraph.net" target="_blank">
Charts made with RGraph: HTML5 Javascript charts library
</a>
If you would prefer not to link to the RGraph website, then you can buy an RGraph commercial license and you won't need to. You may alter the RGraph code to suit your particular needs.
If you're covered by the free license but want to make a donation to help keep RGraph going then they're all gratefully received. You can use PayPal button on the left to send it. Thanks!
The ownership of the Licensed material is not transferred to you in either of these agreements.
In no event shall the initial developers or copyright holders be liable for any damages whatsoever, including - but not restricted to - lost revenue or profits or other direct, indirect, special, incidental or consequential damages, even if they have been advised of the possibility of such damages, except to the extent invariable law, if any, provides otherwise.
The Software and this license document are provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
This license is governed by the Laws of England. Disputes shall be settled by Chelmsford town court.
Any questions or queries about this license or its extent should be directed to supportrgraph.net