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 Paulo Soares:
Track all your products warranties at a distance of a finger Warranty information is the type of things you wish to have with you when something breakdown. How many times people search on personal files for receipts, serial numbers or even the product model. And most of the time when found it, it is a frustrating feeling because the warranty expired. WarrantyTracker allows you to manage all your products and will inform you when the warranty period runs out. Even if some warranties had expired, it is usual to keep some information about the products for later consultation. WarrantyTracker allows you to store this information.