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.
Counts the number of days until a future date, since a past date, or between 2 dates. Select any date and see the number of days until or since that date. Or select two dates to see the number of days between them. Remembers the date selections across iPhone restarts. If "today" is one of the dates, it automatically resets for the current date -- so for countdowns to a future date, simply set once and view daily to see the number of days remaining in the countdown.