Source
Apple has recently announced the World Wide Developer 2013 event that Apple and Apple will bring good news for users. Apple has brought a special advantage to the iOS application developers at that event. There is no better application available in Apple's App Store. Android is losing popularity compared to iOS applications, as well as being harmed by app developers.
The problem has been brought to the App Store to solve the problem. As a result, free trial version can be enjoyed before buying an app from the App Store. Apple has said that the free trial version of the app can be used for up to 14 days before purchasing any applications completely. Apple also said that customers are worried about its use before buying any expensive app from the App Store, so this change has been brought to the App Store for convenience.
Apple claims it is possible to increase the sales of up to 30 percent by using this trial version.