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.
stampReference is the perfect tool for the stamps collector. It contains all the information about your stamps: images, descriptions, colors, price guide, ...Within stampReference you can access an online store with stamp catalogs around the world, ready to be downloaded and viewed in stampDatabase. We are constantly reviewing and improving the catalogs, and periodically we add new countries to the list. Furthermore, each update of a catalog that you've already purchased is free. Try stampReference for free!