DON'T install it

It is not FREE! Before you install – so called free version – please keep in mind that it comes with a blue badge stuck to your website – uremovable.
It looks like you will have to pay till the end of your life to have it remove it. Even if you delete this plugin.
I deleted the plugin – as usually I thouhg – deleted so all elements are gone. Not in this case!
This is the first time I came across a plugin which you have to pay for removing something. I don’t mind to have this badge when using this for free.
However after I disabled it and deleted I would expect all would go!
There are much better plugins doing the same. Even easier to install.
Very disappointed.
WP should remove it from the list. IT is NOT FREE!