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 Vale & Biaso:
Volley Rot is a simple yet powerful iPad and iPhone compatible application for managing one volleyball team layout on the playing field against the opposite team. Useful for volleyball team trainers for studying and simulating teams rotation at the beginning of each set.Both teams are displayed on the main screen. They can be rotated by means of dedicated buttons and/or by means of swipe gestures.On the configuration page, 12 players can be edited for each one of the two teams. Each player can be identified by means of an alphanumeric editable character string. Fast player position exchange feature is available.