There are two download packages available. Scriptio is offered in both a Gnu Public License (GPL) and a commercial license.
The GPL version requires you to release all your code that uses Scriptio under the GPL. A copy of the GPL license can be found here.
The commercial license (details here) does not force you to release all your code built on Scriptio. This license is more appropriate for companies that develop animations or educational software and wish to retain their proprietary rights.
Here are some general guidelines in how to choose the license best for you:
If you would like to purchase a reasonably-priced Commercial License, click here.