You only need less than a half of Freedom 2 ("freedom to study how the program works") to audit the software. Not even the source code - because you can't trust

You only need less than a half of Freedom 2 ("freedom to study how the program works") to audit the software. Not even the source code - because you can't trust the source to match the binary (unless Apple has reproducible builds, of course, but I'm not sure they care about this). But, yes, it's mostly based on a trust rather than knowledge obtained during some audit. (I'd even say that trusting is sorta the opposite of knowing) Disclaimer: never owned any Apple device, ever. But they're doing quite well (or, should I say, others are doing so damn terrible in regards to user security and privacy, Apple starts to look not so bad) so I may consider them as an option.