How Fast You’re Driving
Have you ever wondered how Apple’s navigation services know approximately how long it will take you to reach your destination? Coupled with traffic data, it’s using the many sensors in your iPhone to calculate how fast you’re driving.
More advanced applications can even tell how fast you accelerate (it’s called an accelerometer for a reason) or how sharply you brake.
The next obvious question is, “Wait, can my insurance company access that information?” Well, frequently they don’t need to, because they can access your car’s own tracking data via your car’s computer, OnStar services, and so on. But yet – if you have an insurance company app downloaded to your phone, that app is almost certainly collecting data about how you drive every time you are in the car.