Apple IOS 9

Apple announced on January 9, developers face the past with regard to the rules of the App Store is a screenshot of the new applications. ios9
From January 9 onwards. Once applications have been approved for the App Store, you can not change screenshot again if you want to change the screenshot was re-upload a screenshot with new or updates to the applications are to be submitted to the team's App Store. For more information about monitoring capture screenshot and use of applications that the user has read Xcode.
Apple developers have to do this because some people play tricks. I sent the application to the Apple monitor will send a screenshot, but when I check through Apple. Another change is the screenshot of other interesting applications. The app itself looks interesting.
This technique has been exploited to great effect. It used to be that fake Pokemon Yellow Apple App Store has been sent to Apple in early 2012 avoided the same way. Tricked into believing the thousands bought it. The loopholes in it to Apple to help stop fraudulent applications and more.

Credit developer.apple.com