This software also offers a commercial license.

Commercial license has more flexibility:

• If you plan to include this software as part as your commercial offering, you don't need to publish your software as open source.
• Developers of this software can provide customization and integration, including automated testing and migration to future versions.
• Developers of this software provides support and can also provide consulting.
• The commercial contract guarantees that this software works as described in the user manual.

Please contact Penrose developers for further information.