You can verify this when they release it. Just disconnect from the internet and use it.
Yes, but when it is connected, what data is shared to their severs in secret? You can't know unless a third party audit.
If I heard correctly they had a third party audit. Not 100% sure
Oh, that would be something.
Couldn’t it just log and send the report when you reconnect? “iPhone Storage > System Data” has quite a few GB of black box data that is constantly fluctuating in size. Could easily be logs that I never see.