Where is the iTunes equivalent for Android?

I have searched this forum with no success for a few days, I apologize if this question has already been answered. I am a new Android user, switching from an iPhone to a Galaxy Note 3 with Ice Cream. I have tried using Samsung Kies 3 to replace the features I had with iTunes with no success. It reports complete syncs, but the information is not complete. It does not allow the user to manipulate the screens and organize apps the way iTunes allows. I am looking for software that has all the features of iTunes. I have found a few that are loaded with ads and very few features. So far, I have not found any app that allows me to manage apps in terms of updates. Google could have an app that can handle the basic needs of an Android user. I have not been able to find this. Your help is appreciated.