Very late reply, but just for anyone else I use the following: { BOOL isAppOnMac = NO; if (@available(iOS 14.0, *)) { isAppOnMac = [NSProcessInfo processInfo].isiOSAppOnMac; } return isAppOnMac; }

I'm seeing the same issue on some devices, both iPhones and iPads, running the production release of iOS/iPadOS 17.0.2. I thought that perhaps this issue was only with [HKHealthStore isHealthDataAvailable], so as a test I tried bypassing that call and proceeding with the call to [healthStore requestAuthorizationToShareTypes:], wrapped in a try/catch block. The authorization check though just throws an exception indicating the same error, that "Health data is unavailable on this device", so internally, the auth request API is still calling [HKHealthStore isHealthDataAvailable]. The issue doesn't appear on all devices, most seem to work. I have customers with multiple devices and it will work on one but not the other; in some cases it's their iPhone that doesn't work, and in others it's their iPad running iPadOS 17. I've tried going into the Health App to make sure I've gone through its initial setup in case that was the issue, but it had no effect. The next step is to create a simple app that demonstrates the problem and submit that to Apple with a bug report, but I've done this in the past and waited years with no resolution or response from Apple. Were you able to resolve the issue or have you discovered anything else?

I'm seeing 15% for app sales now in the US, but App Bundles are still at 30% for some reason. I've contacted app store connect support because there's no mention in the Paid Applications of any sales being charged anything other than 15%. Either they're not handling bundles correctly or they need to update the Paid Apps agreement so it is consistent with the actual commission rates being charged--otherwise, it creates a tax issue because the commissions they took won't agree with your backup documentation.