About deleting and reinstalling items
Items that you download are stored in the BlackBerry App World storefront and appear on the My World screen. To make space available for other items, you can delete some of your existing items and reinstall them later at no additional charge for the items. Additional network charges might apply to reinstall items.
You can remove and reinstall items as many times as you want to on the same BlackBerry smartphone. You can reinstall items that you have bought on up to four additional smartphones each year without paying for the items again.