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I'm looking at buying a used MacBook Pro on that comes with Logic Pro X that's running Sierra.

However I need to roll it back to El Capitan so it will run my UA Apollo console software. It's not yet compatible with macOS Sierra.

My question is, since it's already on the computer, if I sign into my Apple ID before I roll back, will I then 'own' Logic Pro X so I can install it again after I reformat from the Mac App Store?

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  • ElCapitan isn't made for the new MacBook Pro, so many features won't work like touch-id and the OLED touch bar
    – Harcker
    Nov 4, 2016 at 21:29
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    This is on a used macbook pro from last year. Not the new ones.
    – v15
    Nov 4, 2016 at 21:55
  • Final Cut X is probably tied to the apple-Id of the first owner, so if you restore back to El Capitan you would probably not be able to get FinalCutX again...
    – Harcker
    Nov 4, 2016 at 21:59
  • @Harcker If it was a new MacBook Pro, you can't install El Capitan, never mind a feature not working. It won't let you; you're never able to install a version of macOS earlier than the version that shipped with the computer.
    – grg
    Nov 4, 2016 at 22:46

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The app, Logic Pro X in this case but it could be any Mac App Store app, remains tied to the account that purchased it, regardless of the currently authenticated account in the App Store app. Updating the app would require you to enter the Apple ID that purchased the app, and it is not possible to transfer ownership of an app from one Apple ID to another.

If you wish to keep the app, you can copy it to an external drive. The app is still linked to the old Apple ID, but you can use it either from the external drive or by copying it back after you've done whatever you need to do on the internal disk. You'll still not be able to update the app.

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  • I'm wondering [untested theory] how the app would treat it if the receipt was not present after reinstalling an older, clean OS.
    – Tetsujin
    Jan 1, 2017 at 16:31

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