Symmetric Designs, a sole proprietorship, concentrates on embedded systems development, as well as iOS, Joomla! extension, and website tool development. Current products include Calendar Filter, an iOS application that filters and display users calendar events; gCalMarkup, a Joomla! extension to filter and display calendar events on Joomla! hosted web sites; and sdMacros, a Joomla! extension used to encapsulate commonly used blocks of HTML and Javascript into simple commands usable by authors without coding knowledge;