The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From Trivum Technologies:
Control the trivum Multiroom System from your iPhone. Select music from your music library, via the artist, album or genre list, play back your playlists or web radio stations. Requires a trivum MusicCenter.
