Big size IPA file after upload to app store

Hello, i am using Unity 5.3.1f1 and make game for iOS, after my game is done i build it to XCode. The binary archived from XCode, and generate ~65MB IPA file. Terrifically, after i upload that IPA file to the app store, it becomes larger ~150MB. I have read this thread: [http://answers.unity3d.com/questions/1149641/very-large-ios-build-size-unity-5.html][1]. But in those case, their IPA file itself is large, and i already disable bitcode Do you guys have any suggestion? [1]: http://answers.unity3d.com/questions/1149641/very-large-ios-build-size-unity-5.html