I am using iphone 6 and I also want to know about this.

I think it has the certain difficulty to transmit data, because you want to transfer data or files between differen operation device ,unless you use effective transfer tool to do that ,

Generally speaking, Requiem is an universal iTunes DRM removal tool for all users. It sometimes doesn't work with the newest iTunes. I know an alternative of Requiem, which is named TunesKit DRM Media Converter. It's advertised to crack iTunes DRM from any iTunes purchased or rented videos and keep the original quality 100%. Maybe you can take it for a try.

I met with a problem while trying to watch my purchased iTunes movies on my Samsung Galaxy S7. I know the iTunes purchased movies are copy protected. So I used Requiem to convert it. But it still can't play it in the Android device. So depressed! Is there any better tool to resolve this problem?