There’re many fake / disputed / copycat apps made by Chinese in iTunes App Store, here’s how to report these shit to Apple:
First, open iTunes Content Dispute to start dispute process. Enter some basic information and continue.
Then you can provide a link to the app from the App Store. Alternatively, you may use the search tab below to search for the app at issue. If there is more than one app you wish to dispute, for example I just searched “Screeny” and got the following result:
Then select them all and continue, you can get a dropdown to choose the nature of your dispute, and a text box for every app you can write details information about your dispute, here’s an example: