Smart Before After Viewer is a Visual diff tool that is a plugin for wordpress, it makes it easy to highlight the differences between two images. Simply wrap any two images with [before-after] shortcode open and close tags inside WordPress editor.
Features:
Fully Responsive
Touch & Mobile Friendly
Extremely Easy to Use
Drag or Hover Interaction
Horizontal and Vertical Orientations
Custom Labels and Colors
Shortcode Generator
Multiple Instance On One Page
Product page: http://codecanyon.net/item/smart-before-after-viewer/7672815
This plugin has been fully nulled, to install simply upload it to your host like you would any other wordpress plugin.