Apple does not use ARM designs, they use certain principles present in the ARM architecture and the ISA.<p>Wikipedia:<p>&quot;Companies can also obtain an ARM architectural licence for designing their own CPU cores using the ARM instruction sets. These cores must comply fully with the ARM architecture.&quot;<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;ARM_architecture#Licensing" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;ARM_architecture#Licensing</a>