https://www.apple.com/legal/sla/docs/macOSCatalina.pdf2Bi
If you obtained a license for the Apple Software from the Mac App Store or
through an automatic download, then subject to the terms and conditions of this License and as
permitted by the Services and Content Usage Rules set forth in the Apple Media Services Terms and
Conditions (
https://www.apple.com/legal/internet-services/itunes/) (“Usage Rules”), you are granted a
limited, non-transferable, non-exclusive license:
(i) to download, install, use and run for personal, non-commercial use, one (1) copy of the Apple
Software
directly on each Apple-branded computer running macOS Mojave, macOS High Sierra,
macOS Sierra, OS X El Capitan, OS X Yosemite, OS X Mavericks, OS X Mountain Lion or OS X
Lion (“Mac Computer”) that you own or control;