Hi,
You can indeed use this component to test the plugin for free in debug compilations of the mobile app. For the iOS platform, this plugin is free. But if you want to use it in Android release compilations a license would have to be purchased from TransistorSoft. They provide excellent support to any issues you might raise related to the plugin.
This component is an example on how to use it, calling from a git repository url in the Extensible Configurations of the module. Upon the license purchase and insertion on the plugin.xml, you'll stop seeing a License Validation Failure message. This message appears in debug compilation apps, but the plugin itself functions normally besides that.
Let me know if you have any more doubts
Kind regards,
Sam