We don't provide a demo or trial for the pro version of our plugin, but feel free to check out the basic version of our plugin which is available for free on https://de.wordpress.org/plugins/widget-options/.
Regarding the pro version, we curated a list of features and our support team is available to answer any questions you may have.
We also have a 30-day Money Back Guarantee, which allows you to dig into the plugin, try it out on your site and see how it works for you. Our documentation is well-prepared to help you to install, configure and use our plugin.
If you're not 100% happy with our plugin, we'll provide you a refund within 30 days of the original purchase date.
In case you have any further question, feel free to get in touch with us.