This is a compression technique that has ability to reduce the network bandwidth usage. This improved Delta++ developed under the aim of Android application update compression. That means it reducing the size of updating file. When comparing with existing system likes Google smart application update their project achieves 50% traffic reduction. So the Delta++ can reduce cellular traffic up to 1.8% in U.S. If they can implement this type of technology in iPhone and windows; it will reduce more network bandwidth usage.