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 Claire Holmes:
This app is a must for anyone who needs to perform date calculation. Using it's intuitive and elegant interface, bits of paper and flicking through calendars are now a thing of the past.Perfect for anyone who needs to find the number of years / months and days between two dates or for anyone who needs to know time periods in the future or past.Need to know when bills should be paid? - Use this app and add 30/60/90 days into the future and work out when payments should be made.Need to know when your baby was conceived? - Simple use this app and subtract around 9 months from the birth date.Need to know how long before that special event? - Using the date difference functionality, the app will tell you the years / months or days left.Functionality contained within this app includes :Date Difference - calculate the years / months / days between 2 dates.Date Addition / Subtraction from a selected date.For ease of use, today's date is automatically selected.