It's possible to have significant amounts of business logic. Google is able to share 70% of it's code (written in Java) for the Google Inbox apps[0][1]. [0]: h

It's possible to have significant amounts of business logic. Google is able to share 70% of it's code (written in Java) for the Google Inbox apps[0][1]. [0]: http://gmailblog.blogspot.ca/2014/11/going-under-hood-of-inbox.html http://gmailblog.blogspot.ca/2014/11/going-under-hood-of-inb... [1]: http://arstechnica.com/information-technology/2014/11/how-google-inbox-shares-70-of-its-code-across-android-ios-and-the-web/ http://arstechnica.com/information-technology/2014/11/how-go...