I just got a MacBook and it was running OS X Yosemite out of the box. My iPhone is running iOS 10. They don't integrate together very well. Then I updated my MacBook to macOS Sierra. Now they're perfect together!

If I upgrade my iPhone to iOS 12, while running macOS Sierra on my MacBook Pro, will they still work perfectly together?

Does Apple recommend to only use matching OS (macOS and iOS released in parallel in the same year)? (I'm sure they recommend to update to the latest available version but I am not ready for macOS Mojave yet).

  • What does "don't integrate very well" mean?
    – nohillside
    Oct 22, 2018 at 9:04
  • Like they work together well. The icloud sync, and when you connect your iphone to itunes. Because with yosemite, i cant connect my phone with a cable in itunes.
    – J. Mangum
    Oct 22, 2018 at 9:42
  • I've provided a general answer below. If you experience specific issues with the connection between a Mac and an iPhone please ask a new question stating exactly this issue (and maybe add a screenshot so others can more easily understand what's going on).
    – nohillside
    Oct 22, 2018 at 10:26

1 Answer 1


The essential element here is the iTunes version. Older versions of iTunes sometimes play not so well (or not at all) with recent iOS versions. So if you get a new iOS version on your phone you may need to install an update of iTunes as well in order to enable your Mac and your Phone to talk to each other.

  • So I wouldve to update to the latest macos too?
    – J. Mangum
    Oct 23, 2018 at 12:11
  • @mangum not necessarily, depends on the requirements ITunes has
    – nohillside
    Oct 23, 2018 at 12:25

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