I suggest making different blocks for iOS and Android (with different colors or icons) since the functionality is different. That would make it more intuitive for users and reduce the number of questions asked in this thread.
The functionality is not different, even if i make different blocks the message will still not share with Facebook on Android, because of the facebook bug.
My opinion is that with more blocks it is more complicated than just one block.
If users just read the tread carefully before they ask questions, the number of questions asked will not reduce. But that's jus my opinion.
