I strongly recommend against anyone buying this plugin.

http://www.oxwall.org/store/item/295

Firstly its 28 dollars, you will find it wont work well at all and in some cases not at all depending on your choice of theme you have installed. trying to contact this developer is a no go, he will not reply to you let alone refund you when not happy with a product. which under consumer law for the purchase of items under RMT (real money trading) we have rights and oxwall need to implement those consumer rights within their online store.