[runjake]

It's not quite the same, because the first time you launch the FitBit app, iOS asks you if you want to give the FitBit app access to your motion data. This works the same with every 3rd party app.

With the Health app in iOS 8, it grants implicit permission and there is apparently no way to remove permissions to your motion data for the Health app.

Is that data going into Apple's cloud? I don't believe so. Is it a big deal to this cloud-conscious guy? Not really.

[chaf]

But when you give it access you can get data for a couple of weeks. So the m7 chip is keeping the data but you dont see it. I also believe that it only stored on the phone and I think this is a setting to get people to use healtkit.

[runjake]

Right, but my point is that the user has control over giving motion data from the M7 to the Fitbit app. The user does not have the same privacy controls for the Health app. I cannot switch off Health app access to motion control in the privacy settings.