Yeah, I've seen those.

I don't know how they qualify those results; they don't publish anything resembling scientific work. Like, how do they counter-balance that Android users need to replace their phones less often? Apple users usually buy the new phone every gen, instead of every 3rd or 4th gen (Apple screens and batteries tend to die quickly); so, it seems active Apple users should be 1/3rd or 1/4th of active devices, not half.

Sales in of themselves don't mean much if you're comparing Apples to oranges (ahem) with a disposable phone vs one that isn't.