The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Bob Carson:
Quick Quotes for iOS will track Stocks and Mutual Funds In any number of accounts, retrieving stock and Fund Prices while keeping all other information safely offline. Price History and Stock Charts are provided. Share your data files with other devices and desktops running Quick Quotes or Quick Stock Quotes over WiFi Network.