The professional version offers JEasy classes (JEasy.jar) that can be shared with the application when redistributed.

One of the benefits of having access to these classes is that it can save a significant amount of development time. Rather than needing to build out certain functions from scratch, you can simply utilize the JEasy classes, which have already been developed and tested for use.
The fact that these classes can be redistributed with your applications also adds a level of convenience. It means that anyone who uses your application can also make use of the JEasy classes without needing to go through any additional steps.
Overall, I would highly recommend making use of the JEasy classes that come with the professional version of this software. They can save you time and effort and ultimately lead to a better end product.
Version 1.8: N/A