change an existing iOS app

There is an existing app called “Gedichte” you can download for free from [login to view URL] Follwowing has to be changed / added: Change couple of subcategories and categories Remove and change poems (from excel-file) bring poems in a defined order Remove the function "iSpeech": Change the output of “sending by sms” Update AdMob to the newest version Change app, that it is working on iOS 7 and iPhone 5 (in full Screen) Change app, that is working on iPad (showing in full screen) Add a “feedback function” (after 5 times using) Please make it is possible to read the words crosswise (if iPhone is turned) make changing to the next poem by wipping to the left or right