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.
You simply go to the area where you want to live. Open Movitat on your smartphone and properties from several sources are shown to you geolocalized in a map near you position. Also you can know points of interest such as schools, supermarkets, highways and others.