No, WordBiz is an application developed exclusively for the Windows and Macintosh operating systems. You can't download and install it on the iPad which is running the iOS operating system. However, if you use the App Store found on the iPad and search for Scrabble, I believe many other alternatives will be shown instead that you can install and play.
Try getting in touch with the developers: http://www.isc.ro/en/help/contact.html
