IOS 64-bit Support
IOS Native API has no issues, with the IOS 64-bit support, Since IOS Native uses only Apple official API without any external libraries.
However in order to add 64-bit support to your project, you need to update Unity project settings. Enabling the IL2CPP scripting backend and iOS 64-bit support on your project is just a couple of clicks away. In the Player Settings for iOS you’ll find two new dropdowns: “Scripting Backend” and “Architecture”.
Switching the scripting backend to IL2CPP unlocks the 64-bit iOS support. By default it builds for “Universal” Architecture, which means your builds will include both the ARMv7 and ARM64 binary slices in your application.
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