No. Most Finnish online casinos are available in Suomi and can be played in your web browser. Many of the live casino game providers also offer native language tables and dealers.
All of the instant play, browser-based, HTML5 casino lobbies and games can also be accessed on the native browser of your mobile device. Desktop users with a Flash plugin for their browser may be able to play more games but there are literally thousands of titles across all game types available for mobile play.