Do not Upgrade to Pro!

The functionality of the plugin is great at the free level for what it allows you to do, but do not spend money upgrading to the Pro version. Although you can customize more of the settings as advertised it actually breaks features that work well in free.

To name a few things: The view ‘elastic box’ no longer functions correctly and the popup when selecting an image appears beneath the other images making it completely unusable. The categories functionality is completely broken and it does not allow you to add, edit or delete categories. There are also just generally less features for no reason, such as less loading icons in the pro versions compared to the free version.

I sent an email to the developers, but I am not expecting a response it appears to have been left entirely unsupported. Do not waste your time or money upgrading to Pro.