The lack of imagination in some of the negative responses in this thread as to how or why someone would want to do this is pretty ridiculous. I'm at a startup

The lack of imagination in some of the negative responses in this thread as to how or why someone would want to do this is pretty ridiculous. I'm at a startup where we do API as a service for insurance companies, and are specialty is acting as a platform for new insurance companies that are seeking to cater to drivers who might not have a credit history (new immigrants) or maybe even a bad one. Instead of each tiny company having to build apps that can allow them to gage driving behavior with GPS (not reliable, because shitty drivers who want to scam the company will turn off GPS every time they are behind the wheel), they could theoretically have an app installed on a customer's phone (required to have the insurance) that uses the phone's inertial sensors to estimate many factors, including speed in this case. It also allows these apps to not even have to collect location data at all, and that's a huge plus for privacy. Maybe this isn't viable. Who knows? But the arrogance in this thread of assuming that there's no use for this is pretty absurd, and all in all negative.