WordPess is the most popular CMS and Magento is also the most popular in the eCommerce CMS sea. The most products of Youama.com are based on this two systems and the most of them are exlusive developments for private customers.
If you want to order themes or extensions in both Magento and WordPress systems, please feel free to drop a mail.
Youama.com have open source products too, what avilable via external repositories for free. If you know one of them, you can find these documentation at this site.