BlackBerry App World allows BlackBerry smartphone users to discover new applications, download free and trial applications, and purchase applications using PayPal accounts. The My World tab on App World logs your purchases and freeware downloads, making it easy to redownload apps you've uninstalled, and to reinstall all your apps anew if you change phone models. Apart from that, RIM got one important element right. We'd prefer more options, like linking a credit card with the app store, or using carrier billing. At this time, the only way to purchase apps is through a PayPal account. While RIM manages no return policy, developers have the option of publishing trials, so you can evaluate a premium application before you purchase. You're able to View reviews and see screenshots before committing to an app you can add your own 2 cents' worth once you've installed the program in question.
Programs are easy to find by browsing through categories or searching-and only those apps compatible with your phone model will show.
As the official BlackBerry storefront, there are certain advantages to using RIM's App World. RIM's BlackBerry App World isn't the only way to get mobile applications onto your BlackBerry smartphone, but it's one of the most convenient.