You need to be very careful if you are too deep into the Apple ecosystem.  I have a Mac, iPad and iPhone.  There was a feature of iOS 9 I wanted (blocking ads) but when I did that, I was no longer able to connect my iPhone to the Mac, and I pretty much lost a month to that.  <a href="http:&#x2F;&#x2F;boston.conman.org&#x2F;2015&#x2F;10&#x2F;04-31" rel="nofollow">http:&#x2F;&#x2F;boston.conman.org&#x2F;2015&#x2F;10&#x2F;04-31</a>