I think attributes are device specific so they won't work on the Mac based simulator. The best way to test them I would think is with an ad hoc build. You can make a build, set some attributes (by passing some levels, changing some app settings etc), then make another build and load that onto your device replacing the old build. The attributes you set should remain. This will show that the users won't lose attributes on app updates.
Attributes also seem to work in the viewer from what I can tell, but I don't think you'd be able to test if the attributes will work across updates with the viewer.
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Attributes also seem to work in the viewer from what I can tell, but I don't think you'd be able to test if the attributes will work across updates with the viewer.
Adhoc allows you to test it for sure...
that's why you have Adhoc for extensive testing.