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 greg Loakes:
What iBought is an app for keeping track of purchases you make. It can be used at the time you make the purchase, when you get home, or at a later date. You can take a photo of the item and also the receipt so that you have a record of it. You can add the price of the item, date of purchase, where it was purchased, warranty date and notes about the purchase. The list of items that you have purchased can be sorted by date, price, name and where the item was purchased. The list can also be filtered to show purchases in a specified date range or location of purchase. At the top of the list is the total price of all purchases within the list.The list that is displayed can be emailed in a table format for reference. The table format of the email means that you can copy and paste the table straight into Excel for your records.