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.
Check it out on youtubehttp://www.youtube.com/watch?v=AO4jBbSYutgShopping on a budget? Purchasing for a party? Taking simple inventory? The Sum Machine can help ease the burden of losing track of your calculations on your pocket calculator all the time (I know I do!). Enter the price and quantity of each item as you shop/record and Sum Machine gives you a running total next to each item and a grand total at the bottom. With Sum Machine, you have the benefits of the following features:* Quick and easy value input.* Return to edit labels, quantities and prices as you go.* Save a list and reload it later.* Share with friends and colleagues via email directly in-app. * Practical and easy to follow formatted HTML table in email.* Emails include a csv file that opens directly in Excel for editing.