WunderSlider Gallery turns default WordPress and NextGEN galleries into responsive fullscreen and embedded WunderSlider slideshows.
This plugin provides an automated way to convert any standard WordPress gallery that is embedded on a page using the [gallery] shortcode into a WunderSlider.
This plugin requires the WunderSlider - either a free personal or a licensed commercial copy.
Installing this plugin without the WunderSlider is a bit pointless, so get yourself a copy and follow the installation instructions.
In features, there is no difference at all.
The main difference is that you are not allowed to use the free version for commercial purposes.
Please refer to WunderSlider for details on that.
By default, the free personal version will place a small icon on pages where it is used and send usage data, if you don't want that, you can turn these off on the Appearance > WunderSlider Gallery settings page in the admin section.