The downloads available are for android, mac , and windows users.From their link there are none available for Linux and iOS. It will be nice if SwC Poker considers making clients for iOS and Linux.In the main time the web interface still looks impressive and inviting.
Linux is not common, and it is a new software (OS) and many people don't know how to use it because of it complication nature to navigate. You can click this link to see more information about the site.
https://www.thepokerbank.com/rooms/swcpoker/ Linux isn't new, it might not be common amongst none technical users because they might not see the need provided their original os still give them the interface to carry out their task. It will be interesting to note that the first Linux distribution (Softlanding Linux System (SLS)) was created sometime around 1992 by peter Macdonald although it's no longer in use. Today people go for Ubuntu, RHEL and other distributions in like manner. It free , open sourced and security gives it edge over other operating systems.