While I think using this kind of data is a bad thing from a privacy perspective, the first thought I had reading this article was &quot;what about minimal users?&quot;  Specifically people like me, I use my phone for phone and web.  No social media, no texting.  I probably use the phone 5-10 times a day, and mostly for very short time periods.*  (Actually I also use it for a clock, but that doesn&#x27;t take me past the lock screen, so I don&#x27;t know if it counts.)<p>So maybe there is a classification that you can determine for minimal users (and I doubt they all come from the same socio-economic group), but aside from GPS logging (which apple tells us the don&#x27;t do) there are large gaps where they don&#x27;t know if I&#x27;m filing bankruptcy or golfing at a $100k a year club.<p>I know I&#x27;m in the quickly diminishing minority in the world, but if you build your business around using a trove of data that is not available for a subset of potential customers, do you bar them from becoming customers, or fall back to standard mechanisms?<p>* The article mentions people under representing their usage, so I&#x27;ll just add that my three year old iPhone 5S is usually at about 95% charge at the end of the day, and the only time I&#x27;ve seen it below 90% was during an extended trip outside, or at the border of reception areas.